We’re keeping our backend servers in sync using NTP but are not sure how synchronized are the time stamps retrieved on the fronted (using NSDate). Can you please comment if you have experience with this issue?
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We’re keeping our backend servers in sync using NTP but are not sure how synchronized are the time stamps retrieved on the fronted (using NSDate). Can you please comment if you have experience with this issue?
In my experience, although often it can be fairly close, from time to time it can be inaccurate by several seconds, and the offset vary even over several hours.
Also, the tower time it syncs to can be off, I’ve seen 15 seconds, 60 seconds (for months), and once : 1 hour when daylight savings was applied when it shouldn’t have been. Once it isn’t syncing to the tower it can drift 10s of seconds per day, and worse when “off”.