Filebeat timestamp is shown with a 4hr offset

We have a Filebeat server (8.9) that ingests Syslog logs. The timestamp shown in GUI is 4 hours earlier than it should be. The timezone is set correctly in Kibana. The timestamp is correct when viewing JSON; it looks like: "@timestamp": "2023-09-21T16:12:00.000Z". In the GUI, it looks like
"Sep 21, 2023 @ 12:12:00.000". We're in EST timezone, if that matters. We did a packet capture on incoming logs - the timezone is correct.

I should add that we also have a Zeek module running on the same Filebeat server, and the timestamps there are correct too!

This seems like the expected behaviour: the Z at the end of 2023-09-21T16:12:00.000Z indicates that this time is in UTC, but you have configured Kibana to show times in EST which is (currently) UTC+4.

Aha - ok thank you. I didn't know Kibana expected times to be in UTC but now that I think about it, it makes sense.

Thanks again for your help!

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