"Everything has its measure. Distance — the length of a kharru step. Time — the beating of two hearts. Matter — the weight of water in cupped hands. To measure is to understand."
— From the "Book of Measures," canonical text, Era of Unity
Related sections: → see [Ch.09, "Technologies"], → see [Ch.25, "Night Sky"]
Counting with stones and knots
34.1 Calendar and Time
Parameter
Value
Note
Solar day
27.3 Earth hours
98,280 seconds
Civil month
29 local days
Six months
Ordinary year
178 local days
174 month days + 4 Renewal Days
Long year
179 local days
One extra day in years divisible by five
Mean year
178.2 local days
202.7025 Earth days
Era origin
Year 0
Civil calendar reform
34.1.1 Months
The six civil months:
No.
Month
Duration
1
First
29 local days
2
Second
29 local days
3
Third
29 local days
4
Fourth
29 local days
5
Fifth
29 local days
6
Sixth
29 local days
Renewal Days belong to no month. An ordinary year has four; every fifth year has five.
A table before the Renewal Days: calendar tablets, family records and warm light.
