The url containing this information is as follows...
http://support.verizonwireless.com/glossary/plans.html#anytime_minutes
Here is the pertinent information:
Night & Weekend Minutes
Allowance minutes that can be used during the following times:
Night Hours: (M-F) 9:01 p.m.-5:59 a.m.
Weekend Hours: 12:00 a.m. Sat.-11:59 p.m. Sun. See also "Off-Peak".
If you make a 3 hour call starting at 9:00 PM your plan will be charged for 180 minutes.
Make sure you start the call at 9:01.
Thanks!
This thread is from 2009!