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-rw-r--r--tokio/src/time/sleep.rs2
1 files changed, 2 insertions, 0 deletions
diff --git a/tokio/src/time/sleep.rs b/tokio/src/time/sleep.rs
index d3234a18..2bd4eb1a 100644
--- a/tokio/src/time/sleep.rs
+++ b/tokio/src/time/sleep.rs
@@ -31,6 +31,8 @@ pub fn sleep_until(deadline: Instant) -> Sleep {
///
/// To run something regularly on a schedule, see [`interval`].
///
+/// The maximum duration for a sleep is 68719476734 milliseconds (approximately 2.2 years).
+///
/// # Cancellation
///
/// Canceling a sleep instance is done by dropping the returned future. No additional