We chose a 20 hour day, rather than 10, because it makes the duration of an hour more similar to our current system, and therefore a bit more intuitive as a unit of time.Decimal TimeStandard Time
- 20 hours per day; each hour equals 72 standard minutes.
- 100 minutes per hour; each minute equals 43.2 standard seconds.
- 100 seconds per minute; each second equals 0.432 standard seconds.
Midnight, 6am, noon, and 6pm align with the hours 0, 5, 10, and 15.