Bug ID 631530: TAI offset not adjusted immediately during leap second

Last Modified: Apr 10, 2019

Bug Tracker

Affected Product:  See more info
BIG-IP TMOS(all modules)

Known Affected Versions:
11.5.4

Fixed In:
11.5.4 HF3

Opened: Dec 02, 2016
Severity: 3-Major
Related AskF5 Article:
K32246335

Symptoms

When repeating a UTC time value during a leap second (when UTC time should be 23:59:60), the International Atomic Time (TAI) timescale should not stop, the kernel increments the TAI offset one second too late.

Impact

Impact to applications unknown, system will stay stable and a timer may be fired off later than expected.

Conditions

This occurs during an NTP leap second event, for example an event occurs on December 31, 2016, at 23:59:60 UTC

Workaround

None.

Fix Information

International Atomic Time (TAI) offset during leap second has been corrected.

Behavior Change