Time Synchronization (NTP) for Fly.io Servers

[halfer]

There are some practical ideas in this thread, particularly in relation to avoiding local time reads, so that JWT generations are correct even after machine unsuspend:

Outdated System Time after Suspension

In one of my applications I have received a jwt decoding issue and discovered outdated system time after machine wake up from suspensions (similar as here: VMs booting with outdated system time after suspension - best practices?) My logs gave the following 2025-04-18T18:20:32Z [info] Virtual machine has been suspended 2025-04-18T18:54:07Z [info] | DEBUG | Server current UTC time: 2025-04-18T18:20:26.366985+00:00 At 18:20:32Z the machine was suspended and at 18:54:07Z I logged a system time of…