4 ms·
> UTC is based on TAI What is TAI?
by jonny_eh 5y ago
> UTC is based on TAI
What is TAI?
- mburns 5y agohttps://www.fhs.swiss/eng/gmt-utc-tai.html https://www.fhs.swiss/eng/gmt-utc-tai.html
- LegionMammal978 5y agoTAI is International Atomic Time. It is used as the reference point for UTC, which is defined as TAI minus a fixed number of seconds (currently 37). To add or remove a leap second, the TAI - UTC offset is adjusted. Leap seconds have no effect on TAI itself, which always runs at 1 second per SI second, as measured by a consensus of atomic clocks.