calendar fact of the day: january 1 of any year whose number is a multiple of 400 is a saturday. From this you can work out the day of the week of any date. thanks wikipedia
calendar fact of the day: january 1 of any year whose number is a multiple of 400 is a saturday. From this you can work out the day of the week of any date. thanks wikipedia
This is the personal website of Cal Henderson, Slack co-founder & CTO.
I give occasional talks, write code and sometimes articles.
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