The Systems Calendar

The Systems Calendar was published in 1022 by the Interplanetary Scientific Congress to standardize dating in scientific documents and to facilitate the sharing of research. For convenience and to garner support from the Interplanetary Council, its initial year was set to match that of the Losurian Calendar, however because of the differing year lengths the year has since diverged.

A year in the Systems Calendar is defined as three billion pulses from the nearby pulsar designated as PXP-1. Any particular date within a year may be represented by a number from 1 to 3 billion, but in common practice the year is subdivided into 300 "days" of ten million pulses, and each "day" is further subdivided into twenty five "hours" of four hundred thousand pulses.

Represented in this way, the date of 2492000000 in year 1032 of the Systems Calendar would be noted as 1032.249.5 SC - that is 5th hour of the 249th day of the year 1032.