Pact Standard Time, sometimes simply called Pact Standard, is a universal system of measuring time based on the unusually identical rotational periods of Castrovel and Triaxus, which themselves correspond to the shift schedule on Absalom Station; and Absalom Station's orbital period.
Both Castrovel and Triaxus have the same rotational period, corresponding to 1 day. These days are divided into 24 hours of 60 minutes each. Absalom Station's orbital period takes 365 of these days, divided into 52 weeks of 7 days each, with these weeks grouped into 12 months.
Days of the week
Days of the week are numbered on their position.
Months of the year
Months of the year draw their origins from ancient deities.
On most worlds where the Pact Worlds holds sway, years in Pact Standard Time are measured relative to the end of the Gap in the Pact Worlds system. These years are denoted as being either "Pre-Gap" (PG) or "After Gap" (AG). Researchers sometimes see documents referring to time, which was used for almost 5,000 years during the Gap, but the unreliability of records from the Gap period make establishing dates within it difficult.
Other worlds use local or existing calendars.