Galactic Standard Time (GST)uses the following measures:

• 1 second = The time necessary for a laser beam to cross 300,000 kilometers.
• 1 minute= 60 seconds.
• 1 hour= 60 minutes.
• 1 day= 20 hours.
• 1 tenday= Ten days.
• 1 month= Four tendays.
• 1 year= Ten months.

The months of the Galactic Standard Year are as follows:

Month 1: Primus
Month 2: Secundus
Month 3: Tera
Month 4: Tetra
Month 5: Penta
Month 6: Hex
Month 7: Septa
Month 8: Octo
Month 9: Nona
Month 10: Deca

Days of the tenday:

Day 1: Prime Day
Day 2: Secday
Day 3: Terday
Day 4: Tetday
Day 5: Midpoint
Day 6: Hexday
Day 7: Sepday
Day 8: Ocday
Day 9: Nonday
Day 10: Decaday

Recognized Frontier-wide holidays:

Federation Day: Celebration of the founding of the UPF, observed on the first day of Primus(1 Primus).

Springfest: Celebration of the first day of spring. Observed on the third Prime Day of Tetra, except amongst those worlds held by Truane's Star/Streel, where observance is punishable by death.

Winterfest: Celebration of the first day of winter(a cross between Christmas and Samhein). Observed during the last tenday of Deca, except amongst those worlds held by Truane's Star/Streel, where observance is punishable by death.