Add end of {day, hour, minute}

1 files changed, 195 insertions, 13 deletions

diff --git a/src/timetype.rs b/src/timetype.rs
index a6c51d2..fe4a100 100644
--- a/src/timetype.rs
+++ b/src/timetype.rs
@@ -34,6 +34,9 @@ pub enum TimeType {
 
     EndOfYear(Box<TimeType>),
     EndOfMonth(Box<TimeType>),
+    EndOfDay(Box<TimeType>),
+    EndOfHour(Box<TimeType>),
+    EndOfMinute(Box<TimeType>),
 }
 
 impl Add for TimeType {
@@ -177,6 +180,36 @@ impl TimeType {
         TimeType::EndOfMonth(Box::new(self))
     }
 
+    /// Calculate the end of the day based on the current TimeType
+    ///
+    /// # Warning
+    ///
+    /// If the current TimeType does _not_ evaluate to a `TimeType::Moment`, calculating the end of
+    /// the day will fail
+    pub fn end_of_day(self) -> TimeType {
+        TimeType::EndOfDay(Box::new(self))
+    }
+
+    /// Calculate the end of the hour based on the current TimeType
+    ///
+    /// # Warning
+    ///
+    /// If the current TimeType does _not_ evaluate to a `TimeType::Moment`, calculating the end of
+    /// the hour will fail
+    pub fn end_of_hour(self) -> TimeType {
+        TimeType::EndOfHour(Box::new(self))
+    }
+
+    /// Calculate the end of the minute based on the current TimeType
+    ///
+    /// # Warning
+    ///
+    /// If the current TimeType does _not_ evaluate to a `TimeType::Moment`, calculating the end of
+    /// the minute will fail
+    pub fn end_of_minute(self) -> TimeType {
+        TimeType::EndOfMinute(Box::new(self))
+    }
+
     /// Get the number of seconds, if the TimeType is not a duration type, zero is returned
     ///
     /// # Warning
@@ -349,11 +382,14 @@ fn do_calculate(tt: TimeType) -> Result<TimeType> {
     use timetype::TimeType as TT;
 
     match tt {
-        TT::Addition(a, b)    => add(a, b),
-        TT::Subtraction(a, b) => sub(a, b),
-        TT::EndOfYear(inner)  => end_of_year(*inner),
-        TT::EndOfMonth(inner) => end_of_month(*inner),
-        x                     => Ok(x)
+        TT::Addition(a, b)     => add(a, b),
+        TT::Subtraction(a, b)  => sub(a, b),
+        TT::EndOfYear(inner)   => end_of_year(*inner),
+        TT::EndOfMonth(inner)  => end_of_month(*inner),
+        TT::EndOfDay(inner)    => end_of_day(*inner),
+        TT::EndOfHour(inner)   => end_of_hour(*inner),
+        TT::EndOfMinute(inner) => end_of_minute(*inner),
+        x                      => Ok(x)
     }
 }
 
@@ -374,8 +410,12 @@ fn end_of_year(tt: TimeType) -> Result<TimeType> {
         els @ TT::Addition(_, _)    |
         els @ TT::Subtraction(_, _) => Err(KE::from_kind(KEK::CannotCalculateEndOfYearOn(els))),
         TT::Moment(m)    => Ok(TT::moment(NaiveDate::from_ymd(m.year(), 12, 31).and_hms(0, 0, 0))),
-        TT::EndOfYear(e) => do_calculate(*e),
-        TT::EndOfMonth(e) => do_calculate(*e),
+
+        TT::EndOfYear(e)   => do_calculate(*e),
+        TT::EndOfMonth(e)  => do_calculate(*e),
+        TT::EndOfDay(e)    => do_calculate(*e),
+        TT::EndOfHour(e)   => do_calculate(*e),
+        TT::EndOfMinute(e) => do_calculate(*e),
     }
 }
 
@@ -399,8 +439,94 @@ fn end_of_month(tt: TimeType) -> Result<TimeType> {
             let last_day = get_num_of_days_in_month(m.year() as i64, m.month() as i64) as u32;
             Ok(TT::moment(NaiveDate::from_ymd(m.year(), m.month(), last_day).and_hms(0, 0, 0)))
         },
-        TT::EndOfYear(e) => do_calculate(*e),
-        TT::EndOfMonth(e) => do_calculate(*e),
+        TT::EndOfYear(e)   => do_calculate(*e),
+        TT::EndOfMonth(e)  => do_calculate(*e),
+        TT::EndOfDay(e)    => do_calculate(*e),
+        TT::EndOfHour(e)   => do_calculate(*e),
+        TT::EndOfMinute(e) => do_calculate(*e),
+    }
+}
+
+/// Evaluates the passed argument and if it is a `TT::Moment` it adjust its to the end of the day
+/// else returns an error
+///
+/// Calling a end-of-day on a end-of-day yields end-of-month applied only once.
+fn end_of_day(tt: TimeType) -> Result<TimeType> {
+    use timetype::TimeType as TT;
+
+    match try!(do_calculate(tt)) {
+        els @ TT::Seconds(_)        |
+        els @ TT::Minutes(_)        |
+        els @ TT::Hours(_)          |
+        els @ TT::Days(_)           |
+        els @ TT::Months(_)         |
+        els @ TT::Years(_)          |
+        els @ TT::Addition(_, _)    |
+        els @ TT::Subtraction(_, _) => Err(KE::from_kind(KEK::CannotCalculateEndOfMonthOn(els))),
+        TT::Moment(m)    => {
+            Ok(TT::moment(NaiveDate::from_ymd(m.year(), m.month(), m.day()).and_hms(23, 59, 59)))
+        },
+        TT::EndOfYear(e)   => do_calculate(*e),
+        TT::EndOfMonth(e)  => do_calculate(*e),
+        TT::EndOfDay(e)    => do_calculate(*e),
+        TT::EndOfHour(e)   => do_calculate(*e),
+        TT::EndOfMinute(e) => do_calculate(*e),
+    }
+}
+
+/// Evaluates the passed argument and if it is a `TT::Moment` it adjust its to the end of the hour
+/// else returns an error
+///
+/// Calling a end-of-hour on a end-of-hour yields end-of-month applied only once.
+fn end_of_hour(tt: TimeType) -> Result<TimeType> {
+    use timetype::TimeType as TT;
+
+    match try!(do_calculate(tt)) {
+        els @ TT::Seconds(_)        |
+        els @ TT::Minutes(_)        |
+        els @ TT::Hours(_)          |
+        els @ TT::Days(_)           |
+        els @ TT::Months(_)         |
+        els @ TT::Years(_)          |
+        els @ TT::Addition(_, _)    |
+        els @ TT::Subtraction(_, _) => Err(KE::from_kind(KEK::CannotCalculateEndOfMonthOn(els))),
+        TT::Moment(m)    => {
+            Ok(TT::moment(NaiveDate::from_ymd(m.year(), m.month(), m.day())
+                          .and_hms(m.hour(), 59, 59)))
+        },
+        TT::EndOfYear(e)   => do_calculate(*e),
+        TT::EndOfMonth(e)  => do_calculate(*e),
+        TT::EndOfDay(e)    => do_calculate(*e),
+        TT::EndOfHour(e)   => do_calculate(*e),
+        TT::EndOfMinute(e) => do_calculate(*e),
+    }
+}
+
+/// Evaluates the passed argument and if it is a `TT::Moment` it adjust its to the end of the
+/// minute else returns an error
+///
+/// Calling a end-of-minute on a end-of-minute yields end-of-month applied only once.
+fn end_of_minute(tt: TimeType) -> Result<TimeType> {
+    use timetype::TimeType as TT;
+
+    match try!(do_calculate(tt)) {
+        els @ TT::Seconds(_)        |
+        els @ TT::Minutes(_)        |
+        els @ TT::Hours(_)          |
+        els @ TT::Days(_)           |
+        els @ TT::Months(_)         |
+        els @ TT::Years(_)          |
+        els @ TT::Addition(_, _)    |
+        els @ TT::Subtraction(_, _) => Err(KE::from_kind(KEK::CannotCalculateEndOfMonthOn(els))),
+        TT::Moment(m)    => {
+            Ok(TT::moment(NaiveDate::from_ymd(m.year(), m.month(), m.day())
+                          .and_hms(m.hour(), m.minute(), 59)))
+        },
+        TT::EndOfYear(e)   => do_calculate(*e),
+        TT::EndOfMonth(e)  => do_calculate(*e),
+        TT::EndOfDay(e)    => do_calculate(*e),
+        TT::EndOfHour(e)   => do_calculate(*e),
+        TT::EndOfMinute(e) => do_calculate(*e),
     }
 }
 
@@ -449,6 +575,12 @@ fn add(a: Box<TimeType>, b: Box<TimeType>) -> Result<TimeType> {
         (TT::EndOfMonth(e), other) => Err(KE::from_kind(KEK::CannotAdd(other, TT::EndOfMonth(e)))),
         (other, TT::EndOfMonth(e)) => Err(KE::from_kind(KEK::CannotAdd(other, TT::EndOfMonth(e)))),
 
+        (TT::EndOfDay(e), other) => Err(KE::from_kind(KEK::CannotAdd(other, TT::EndOfDay(e)))),
+        (other, TT::EndOfDay(e)) => Err(KE::from_kind(KEK::CannotAdd(other, TT::EndOfDay(e)))),
+
+        (TT::EndOfHour(e), other) => Err(KE::from_kind(KEK::CannotAdd(other, TT::EndOfHour(e)))),
+        (other, TT::EndOfHour(e)) => Err(KE::from_kind(KEK::CannotAdd(other, TT::EndOfHour(e)))),
+
         others                           => unimplemented!(),
     }
 }
@@ -466,6 +598,9 @@ fn add_to_seconds(amount: i64, tt: TimeType) -> Result<TimeType> {
         TT::Moment(m)         => Err(KE::from_kind(KEK::CannotAdd(TT::Seconds(amount), TT::Moment(m)))),
         TT::EndOfYear(e)      => Err(KE::from_kind(KEK::CannotAdd(TT::Seconds(amount), TT::EndOfYear(e)))),
         TT::EndOfMonth(e)     => Err(KE::from_kind(KEK::CannotAdd(TT::Seconds(amount), TT::EndOfMonth(e)))),
+        TT::EndOfDay(e)       => Err(KE::from_kind(KEK::CannotAdd(TT::Seconds(amount), TT::EndOfDay(e)))),
+        TT::EndOfHour(e)      => Err(KE::from_kind(KEK::CannotAdd(TT::Seconds(amount), TT::EndOfHour(e)))),
+        TT::EndOfMinute(e)    => Err(KE::from_kind(KEK::CannotAdd(TT::Seconds(amount), TT::EndOfMinute(e)))),
         TT::Addition(b, c)    => add_to_seconds(amount, try!(add(b, c))),
         TT::Subtraction(b, c) => add_to_seconds(amount, try!(sub(b, c))),
     }
@@ -484,6 +619,9 @@ fn add_to_minutes(amount: i64, tt: TimeType) -> Result<TimeType> {
         TT::Moment(m)         => Err(KE::from_kind(KEK::CannotAdd(TT::Minutes(amount), TT::Moment(m)))),
         TT::EndOfYear(e)      => Err(KE::from_kind(KEK::CannotAdd(TT::Minutes(amount), TT::EndOfYear(e)))),
         TT::EndOfMonth(e)     => Err(KE::from_kind(KEK::CannotAdd(TT::Minutes(amount), TT::EndOfMonth(e)))),
+        TT::EndOfDay(e)       => Err(KE::from_kind(KEK::CannotAdd(TT::Minutes(amount), TT::EndOfDay(e)))),
+        TT::EndOfHour(e)      => Err(KE::from_kind(KEK::CannotAdd(TT::Minutes(amount), TT::EndOfHour(e)))),
+        TT::EndOfMinute(e)    => Err(KE::from_kind(KEK::CannotAdd(TT::Minutes(amount), TT::EndOfMinute(e)))),
         TT::Addition(b, c)    => add_to_minutes(amount, try!(add(b, c))),
         TT::Subtraction(b, c) => add_to_minutes(amount, try!(sub(b, c))),
     }
@@ -502,6 +640,9 @@ fn add_to_hours(amount: i64, tt: TimeType) -> Result<TimeType> {
         TT::Moment(m)         => Err(KE::from_kind(KEK::CannotAdd(TT::Hours(amount), TT::Moment(m)))),
         TT::EndOfYear(e)      => Err(KE::from_kind(KEK::CannotAdd(TT::Hours(amount), TT::EndOfYear(e)))),
         TT::EndOfMonth(e)     => Err(KE::from_kind(KEK::CannotAdd(TT::Hours(amount), TT::EndOfMonth(e)))),
+        TT::EndOfDay(e)       => Err(KE::from_kind(KEK::CannotAdd(TT::Hours(amount), TT::EndOfDay(e)))),
+        TT::EndOfHour(e)      => Err(KE::from_kind(KEK::CannotAdd(TT::Hours(amount), TT::EndOfHour(e)))),
+        TT::EndOfMinute(e)    => Err(KE::from_kind(KEK::CannotAdd(TT::Hours(amount), TT::EndOfMinute(e)))),
         TT::Addition(b, c)    => add_to_hours(amount, try!(add(b, c))),
         TT::Subtraction(b, c) => add_to_hours(amount, try!(sub(b, c))),
     }
@@ -520,6 +661,9 @@ fn add_to_days(amount: i64, tt: TimeType) -> Result<TimeType> {
         TT::Moment(m)         => Err(KE::from_kind(KEK::CannotAdd(TT::Days(amount), TT::Moment(m)))),
         TT::EndOfYear(e)      => Err(KE::from_kind(KEK::CannotAdd(TT::Days(amount), TT::EndOfYear(e)))),
         TT::EndOfMonth(e)     => Err(KE::from_kind(KEK::CannotAdd(TT::Days(amount), TT::EndOfMonth(e)))),
+        TT::EndOfDay(e)       => Err(KE::from_kind(KEK::CannotAdd(TT::Days(amount), TT::EndOfDay(e)))),
+        TT::EndOfHour(e)      => Err(KE::from_kind(KEK::CannotAdd(TT::Days(amount), TT::EndOfHour(e)))),
+        TT::EndOfMinute(e)    => Err(KE::from_kind(KEK::CannotAdd(TT::Days(amount), TT::EndOfMinute(e)))),
         TT::Addition(b, c)    => add_to_days(amount, try!(add(b, c))),
         TT::Subtraction(b, c) => add_to_days(amount, try!(sub(b, c))),
     }
@@ -538,6 +682,9 @@ fn add_to_months(amount: i64, tt: TimeType) -> Result<TimeType> {
         TT::Moment(m)         => Err(KE::from_kind(KEK::CannotAdd(TT::Months(amount), TT::Moment(m)))),
         TT::EndOfYear(e)      => Err(KE::from_kind(KEK::CannotAdd(TT::Months(amount), TT::EndOfYear(e)))),
         TT::EndOfMonth(e)     => Err(KE::from_kind(KEK::CannotAdd(TT::Months(amount), TT::EndOfMonth(e)))),
+        TT::EndOfDay(e)       => Err(KE::from_kind(KEK::CannotAdd(TT::Months(amount), TT::EndOfDay(e)))),
+        TT::EndOfHour(e)      => Err(KE::from_kind(KEK::CannotAdd(TT::Months(amount), TT::EndOfHour(e)))),
+        TT::EndOfMinute(e)    => Err(KE::from_kind(KEK::CannotAdd(TT::Months(amount), TT::EndOfMinute(e)))),
         TT::Addition(b, c)    => add_to_months(amount, try!(add(b, c))),
         TT::Subtraction(b, c) => add_to_months(amount, try!(sub(b, c))),
     }
@@ -556,6 +703,9 @@ fn add_to_years(amount: i64, tt: TimeType) -> Result<TimeType> {
         TT::Moment(m)         => Err(KE::from_kind(KEK::CannotAdd(TT::Years(amount), TT::Moment(m)))),
         TT::EndOfYear(e)      => Err(KE::from_kind(KEK::CannotAdd(TT::Years(amount), TT::EndOfYear(e)))),
         TT::EndOfMonth(e)     => Err(KE::from_kind(KEK::CannotAdd(TT::Years(amount), TT::EndOfMonth(e)))),
+        TT::EndOfDay(e)       => Err(KE::from_kind(KEK::CannotAdd(TT::Years(amount), TT::EndOfDay(e)))),
+        TT::EndOfHour(e)      => Err(KE::from_kind(KEK::CannotAdd(TT::Years(amount), TT::EndOfHour(e)))),
+        TT::EndOfMinute(e)    => Err(KE::from_kind(KEK::CannotAdd(TT::Years(amount), TT::EndOfMinute(e)))),
         TT::Addition(b, c)    => add_to_years(amount, try!(add(b, c))),
         TT::Subtraction(b, c) => add_to_years(amount, try!(sub(b, c))),
     }
@@ -652,6 +802,9 @@ fn add_to_moment(mom: NaiveDateTime, tt: TimeType) -> Result<TimeType> {
         TT::Moment(m)         => Err(KE::from_kind(KEK::CannotAdd(TT::Moment(mom), TT::Moment(m)))),
         TT::EndOfYear(e)      => Err(KE::from_kind(KEK::CannotAdd(TT::Moment(mom), TT::EndOfYear(e)))),
         TT::EndOfMonth(e)     => Err(KE::from_kind(KEK::CannotAdd(TT::Moment(mom), TT::EndOfMonth(e)))),
+        TT::EndOfDay(e)       => Err(KE::from_kind(KEK::CannotAdd(TT::Moment(mom), TT::EndOfDay(e)))),
+        TT::EndOfHour(e)      => Err(KE::from_kind(KEK::CannotAdd(TT::Moment(mom), TT::EndOfHour(e)))),
+        TT::EndOfMinute(e)    => Err(KE::from_kind(KEK::CannotAdd(TT::Moment(mom), TT::EndOfMinute(e)))),
         TT::Addition(a, b)    => add_to_moment(mom, try!(add(a, b))),
         TT::Subtraction(a, b) => add_to_moment(mom, try!(sub(a, b))),
     }
@@ -714,6 +867,14 @@ fn sub(a: Box<TimeType>, b: Box<TimeType>) -> Result<TimeType> {
         (TT::EndOfMonth(e), other) => Err(KE::from_kind(KEK::CannotSub(other, TT::EndOfMonth(e)))),
         (other, TT::EndOfMonth(e)) => Err(KE::from_kind(KEK::CannotSub(other, TT::EndOfMonth(e)))),
 
+        (TT::EndOfDay(e), other) => Err(KE::from_kind(KEK::CannotSub(other, TT::EndOfDay(e)))),
+        (other, TT::EndOfDay(e)) => Err(KE::from_kind(KEK::CannotSub(other, TT::EndOfDay(e)))),
+
+        (TT::EndOfHour(e), other) => Err(KE::from_kind(KEK::CannotSub(other, TT::EndOfHour(e)))),
+        (other, TT::EndOfHour(e)) => Err(KE::from_kind(KEK::CannotSub(other, TT::EndOfHour(e)))),
+
+        (TT::EndOfMinute(e), other) => Err(KE::from_kind(KEK::CannotSub(other, TT::EndOfMinute(e)))),
+        (other, TT::EndOfMinute(e)) => Err(KE::from_kind(KEK::CannotSub(other, TT::EndOfMinute(e)))),
 
         others                           => unimplemented!(),
     }
@@ -732,6 +893,9 @@ fn sub_from_seconds(amount: i64, tt: TimeType) -> Result<TimeType> {
         TT::Moment(m)         => Err(KE::from_kind(KEK::CannotSub(TT::Seconds(amount), TT::Moment(m)))),
         TT::EndOfYear(e)      => Err(KE::from_kind(KEK::CannotSub(TT::Seconds(amount), TT::EndOfYear(e)))),
         TT::EndOfMonth(e)     => Err(KE::from_kind(KEK::CannotSub(TT::Seconds(amount), TT::EndOfMonth(e)))),
+        TT::EndOfDay(e)       => Err(KE::from_kind(KEK::CannotSub(TT::Seconds(amount), TT::EndOfDay(e)))),
+        TT::EndOfHour(e)      => Err(KE::from_kind(KEK::CannotSub(TT::Seconds(amount), TT::EndOfHour(e)))),
+        TT::EndOfMinute(e)    => Err(KE::from_kind(KEK::CannotSub(TT::Seconds(amount), TT::EndOfMinute(e)))),
         TT::Addition(b, c)    => sub_from_seconds(amount, try!(add(b, c))),
         TT::Subtraction(b, c) => sub_from_seconds(amount, try!(sub(b, c))),
     }
@@ -750,6 +914,9 @@ fn sub_from_minutes(amount: i64, tt: TimeType) -> Result<TimeType> {
         TT::Moment(m)         => Err(KE::from_kind(KEK::CannotSub(TT::Minutes(amount), TT::Moment(m)))),
         TT::EndOfYear(e)      => Err(KE::from_kind(KEK::CannotSub(TT::Minutes(amount), TT::EndOfYear(e)))),
         TT::EndOfMonth(e)     => Err(KE::from_kind(KEK::CannotSub(TT::Minutes(amount), TT::EndOfMonth(e)))),
+        TT::EndOfDay(e)       => Err(KE::from_kind(KEK::CannotSub(TT::Minutes(amount), TT::EndOfDay(e)))),
+        TT::EndOfHour(e)      => Err(KE::from_kind(KEK::CannotSub(TT::Minutes(amount), TT::EndOfHour(e)))),
+        TT::EndOfMinute(e)    => Err(KE::from_kind(KEK::CannotSub(TT::Minutes(amount), TT::EndOfMinute(e)))),
         TT::Addition(b, c)    => sub_from_minutes(amount, try!(add(b, c))),
         TT::Subtraction(b, c) => sub_from_minutes(amount, try!(sub(b, c))),
     }
@@ -766,8 +933,11 @@ fn sub_from_hours(amount: i64, tt: TimeType) -> Result<TimeType> {
         TT::Months(a)         => Ok(TT::Hours(amount -   a * 24 * 30)),
         TT::Years(a)          => Ok(TT::Hours(amount -   a * 24 * 30 * 12)),
         TT::Moment(m)         => Err(KE::from_kind(KEK::CannotSub(TT::Hours(amount), TT::Moment(m)))),
-        TT::EndOfYear(e)      => Err(KE::from_kind(KEK::CannotSub(TT::Hours(amount), TT::EndOfYear(e)))),
+        TT::EndOfYear(e)    => Err(KE::from_kind(KEK::CannotSub(TT::Hours(amount), TT::EndOfYear(e)))),
         TT::EndOfMonth(e)     => Err(KE::from_kind(KEK::CannotSub(TT::Hours(amount), TT::EndOfMonth(e)))),
+        TT::EndOfDay(e)       => Err(KE::from_kind(KEK::CannotSub(TT::Hours(amount), TT::EndOfDay(e)))),
+        TT::EndOfHour(e)      => Err(KE::from_kind(KEK::CannotSub(TT::Hours(amount), TT::EndOfHour(e)))),
+        TT::EndOfMinute(e)    => Err(KE::from_kind(KEK::CannotSub(TT::Hours(amount), TT::EndOfMinute(e)))),
         TT::Addition(b, c)    => sub_from_hours(amount, try!(add(b, c))),
         TT::Subtraction(b, c) => sub_from_hours(amount, try!(sub(b, c))),
     }
@@ -785,7 +955,10 @@ fn sub_from_days(amount: i64, tt: TimeType) -> Result<TimeType> {
         TT::Years(a)          => Ok(TT::Days(amount -    a * 30 * 12)),
         TT::Moment(m)         => Err(KE::from_kind(KEK::CannotSub(TT::Days(amount), TT::Moment(m)))),
         TT::EndOfYear(e)      => Err(KE::from_kind(KEK::CannotSub(TT::Days(amount), TT::EndOfYear(e)))),
-        TT::EndOfMonth(e)      => Err(KE::from_kind(KEK::CannotSub(TT::Days(amount), TT::EndOfMonth(e)))),
+        TT::EndOfMonth(e)     => Err(KE::from_kind(KEK::CannotSub(TT::Days(amount), TT::EndOfMonth(e)))),
+        TT::EndOfDay(e)       => Err(KE::from_kind(KEK::CannotSub(TT::Days(amount), TT::EndOfDay(e)))),
+        TT::EndOfHour(e)      => Err(KE::from_kind(KEK::CannotSub(TT::Days(amount), TT::EndOfHour(e)))),
+        TT::EndOfMinute(e)    => Err(KE::from_kind(KEK::CannotSub(TT::Days(amount), TT::EndOfMinute(e)))),
         TT::Addition(b, c)    => sub_from_days(amount, try!(add(b, c))),
         TT::Subtraction(b, c) => sub_from_days(amount, try!(sub(b, c))),
     }
@@ -803,7 +976,10 @@ fn sub_from_months(amount: i64, tt: TimeType) -> Result<TimeType> {
         TT::Years(a)          => Ok(TT::Months(amount -  a * 12)),
         TT::Moment(m)         => Err(KE::from_kind(KEK::CannotSub(TT::Months(amount), TT::Moment(m)))),
         TT::EndOfYear(e)      => Err(KE::from_kind(KEK::CannotSub(TT::Months(amount), TT::EndOfYear(e)))),
-        TT::EndOfMonth(e)      => Err(KE::from_kind(KEK::CannotSub(TT::Months(amount), TT::EndOfMonth(e)))),
+        TT::EndOfMonth(e)     => Err(KE::from_kind(KEK::CannotSub(TT::Months(amount), TT::EndOfMonth(e)))),
+        TT::EndOfDay(e)       => Err(KE::from_kind(KEK::CannotSub(TT::Months(amount), TT::EndOfDay(e)))),
+        TT::EndOfHour(e)      => Err(KE::from_kind(KEK::CannotSub(TT::Months(amount), TT::EndOfHour(e)))),
+        TT::EndOfMinute(e)    => Err(KE::from_kind(KEK::CannotSub(TT::Months(amount), TT::EndOfMinute(e)))),
         TT::Addition(b, c)    => sub_from_months(amount, try!(add(b, c))),
         TT::Subtraction(b, c) => sub_from_months(amount, try!(sub(b, c))),
     }
@@ -821,7 +997,10 @@ fn sub_from_years(amount: i64, tt: TimeType) -> Result<TimeType> {
         TT::Years(a)          => Ok(TT::Years(amount -   a)),
         TT::Moment(m)         => Err(KE::from_kind(KEK::CannotSub(TT::Years(amount), TT::Moment(m)))),
         TT::EndOfYear(e)      => Err(KE::from_kind(KEK::CannotSub(TT::Years(amount), TT::EndOfYear(e)))),
-        TT::EndOfMonth(e)      => Err(KE::from_kind(KEK::CannotSub(TT::Months(amount), TT::EndOfMonth(e)))),
+        TT::EndOfMonth(e)     => Err(KE::from_kind(KEK::CannotSub(TT::Years(amount), TT::EndOfMonth(e)))),
+        TT::EndOfDay(e)       => Err(KE::from_kind(KEK::CannotSub(TT::Years(amount), TT::EndOfDay(e)))),
+        TT::EndOfHour(e)      => Err(KE::from_kind(KEK::CannotSub(TT::Years(amount), TT::EndOfHour(e)))),
+        TT::EndOfMinute(e)    => Err(KE::from_kind(KEK::CannotSub(TT::Years(amount), TT::EndOfMinute(e)))),
         TT::Addition(b, c)    => sub_from_years(amount, try!(add(b, c))),
         TT::Subtraction(b, c) => sub_from_years(amount, try!(sub(b, c))),
     }
@@ -918,6 +1097,9 @@ fn sub_from_moment(mom: NaiveDateTime, tt: TimeType) -> Result<TimeType> {
         TT::Moment(m)         => Err(KE::from_kind(KEK::CannotSub(TT::Moment(mom), TT::Moment(m)))),
         TT::EndOfYear(e)      => Err(KE::from_kind(KEK::CannotSub(TT::Moment(mom), TT::EndOfYear(e)))),
         TT::EndOfMonth(e)     => Err(KE::from_kind(KEK::CannotSub(TT::Moment(mom), TT::EndOfMonth(e)))),
+        TT::EndOfDay(e)       => Err(KE::from_kind(KEK::CannotSub(TT::Moment(mom), TT::EndOfDay(e)))),
+        TT::EndOfHour(e)      => Err(KE::from_kind(KEK::CannotSub(TT::Moment(mom), TT::EndOfHour(e)))),
+        TT::EndOfMinute(e)    => Err(KE::from_kind(KEK::CannotSub(TT::Moment(mom), TT::EndOfMinute(e)))),
         TT::Addition(a, b)    => sub_from_moment(mom, try!(add(a, b))),
         TT::Subtraction(a, b) => sub_from_moment(mom, try!(sub(a, b))),
     }