Error "Fortigate time is out of sync"

[nanashi]

What are the possible reasons for the error "Fortigate time is out of sync" even though the current time is correct?

The settings of the time zone and NTP server address are correct.

[funkylicious]

if the commands in the link, https://community.fortinet.com/t5/FortiGate/Troubleshooting-Tip-NTP-synchronization-issue/ta-p/19526... , show a correct date/time, the issue is cosmetic most of the time i've encountered it.

try opening the webui in incognito and the issue should go away.

[nanashi]

Thank you for your reply.

[kcheng]

Hi @nanashi 

You may want to check your local browser if it is synced with a NTP server as well. This issue can happen if the FortiGate system time differs by more than 2 minutes from the local client (browser) time.

http://community.fortinet.com/t5/FortiGate/Technical-Tip-FortiGate-time-is-out-of-sync/ta-p/194503