Leap Seconds – Leap seconds have been added 26 times since 1972. They’re inserted at the end of the last day of either June or December. The leap second will be added to the world’s clocks at 23 hours, 59 minutes and 59 seconds Coordinated Universal Time (UTC) on December 31 2016. This corresponds to 6:59:59 p.m. Eastern Standard Time, when the extra second will be inserted at the U.S. Naval Observatory’s Master Clock Facility in Washington, DC
Does it affect CitrixxenApp/XenDesktop?
Answer here from last occurrence:
http://support.citrix.com/article/CTX201202
I don’t think it has changed
Does it affect Citrix Netscaler?
Answer here from the last Citrix update in June 2015:
http://support.citrix.com/article/CTX200416
Potential problems related to the leap second issue:
https://bugzilla.redhat.com/show_bug.cgi?id=479765
