Date Formats
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Many options take a date argument. CVS accepts a wide variety of date
formats - too many to list here. When in doubt, stick with the
standard ISO 8601 format:
1999-08-23
This means "23 August 1999" (in fact, "23 August 1999" is a perfectly
valid date specifier too, as long as you remember to enclose it in
double quotes). If you need a time of day as well, you can do this:
"1999-08-23 21:20:30 CDT"
You can even use certain common English constructs, such as "now",
"yesterday", and "12 days ago". In general, you can safely experiment
with date formats; if CVS understands your format at all, it most likely
will understand it in the way you intended. If it doesn't understand,
it will exit with an error immediately.