One of my receivers is sometimes off by 2 minutes. Rebooting corrects it. But I have noticed that both receivers have minor differences in time between them most of the time. I'll be glad when they get the NTP time issue resolved.Far better than NTP time. It might be off around 5 seconds, but it beats it suddenly going to something random, at a year or months earlier.
EB over at Legit says it's an on-going issue with the NTP time software originally built into Enigma images. He claims that it'll be fixed for once and all in TNAP 4.1, which is a few weeks off.