Dates in CVS
In any command or option that requires a date, CVS understands a number
of different formats, including:
ISO Standard: YYYY-MM-DD HH:MM
Relative: yesterday, tomorrow, today, 3 days ago, 2
years ago, etc.
Email Standard: DD Month YYYY, as in 28 Aug 2001.
Per RFC 822.
Other formats: including MM/DD/YYYY used in U.S.
CVS uses UTC for all dates.
When you use a relative date ('today', '3 days ago') be aware that that
day starts at midnight (UTC).