Grego is a calendar without any extra days anywhere. The current calendar has an extra day every year, and on leap years, 2, meaning that the day of the week drifts. Hacks, like making that day a non-named day, have been proposed, but those are, as I said, hacks. The grego system does away with that.

Grego is simple. It has units of days, weeks, months, seasons, cycles, and finally gregii in a series of simple, easy to remember ratios:

• There are 7 days in a week.
• There are 3 weeks in a month.
• There are 3 months in a season.
• There are 3 seasons in a cycle.
• There are 773 cycles in a grego.

Above, you can see the current date in grego terms. Use it!