Compare working hour overlaps between California (PT) and major transatlantic & transpacific partners.
Calculated precision progress of Earth through its current 365/366-day solar revolution around the Sun.
Divides the solar day into 1000 equal ".beats" (1 beat = 1 min, 26.4 sec) synchronized to Biel Mean Time (UTC+1) without daylight savings.
Mean solar time at the Martian prime meridian (Airy-0 crater). 1 Martian Sol ≈ 24h 39m 35.244s Earth standard.
10 decimal hours per day, 100 decimal minutes per hour, 100 decimal seconds per minute.
Time measured by the rotation of the Earth relative to the distant fixed stars rather than the Sun (approximated for astronomers).