I remember if I must from knowing that the month of my birthday and the month following it both have 31 days, but usually I try to leave such error-prone computations to computers instead. If you are using perl, I generally recommend the Date::Manip module, unless you need sub-second precision.

In reply to Re: How do you remember the number of days in each month? by ambrus
in thread How do you remember the number of days in each month? by chacham

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