The Chehalis (Sts'Ailes) people live in southwest Canada and have a rather unique way of keeping track of time. They begin their year with the arrival of spawning chinook salmon (generally October in the western Gregorian calendar). Then they count 10 months from that point, using lunar months, which is generally around 280 days.
There is then an uncounted period. The Chehalis have around 70 uncounted days each year until the next chinook salmon appear.
