The four most common time systems in the Far Shoals are Metric-Day Time, Old Calendar, Darian Calendar, and Metric-Second Time.
While other calendars are observed, the vast majority of cultures in the Far Shoals use Metric-Day Time.
The basic unit is the Day, based on the length of the Earth day. All other measures use metric modifiers of the day.
1000 days = kiloday ~= 2.73 Earth years. 'kilot'
100 days = hectoday ~= season/3-4 Earth months. 'hectod'
10 days = decaday. 'decat,' and used much like Earth weeks (though 3 days longer).
.1 days = deciday = 2.4 hours. 'decit'
.01 day = centiday = 14.4 minutes. 'centid'
.001 day = milliday = 1.44 minutes. 'millit'
.00001 day = second = .864 Earth seconds. (The term second is used, though this can be confusing comparing to other time systems)
The Western Calendar of ancient Earth, this time system is common among humans engaging in cultural revivals.
The most common calendar of Mars, this system was a popular adaptation of the Western Calendar to reflect the much longer year.
A few groups strongly identify with Martian civilization. Otherwise, it is fairly uncommon.
Some mai, seeking to distance themselves from any trappings of humanity, reject basing time on the human 'day' and instead use seconds.
Sometimes metric prefixes are used, such as the kilosecond (~16 minutes) and megasecond (~11 days), but more often scientific notation is used.
This calendar hasn't gained a lot of traction, however, as most mai find it easier to base common measures of time around a day, and only measure seconds for scientific observations.
Time in the Cobalt Cluster is marked as CCF: Cobalt Cluster Foundation, marking time since the official foundation of the Cobalt Cluster.
The date as of Chapter 1 is approximately 522 kilodays CCF.