This is documentation for Mathematica 8, which was
based on an earlier version of the Wolfram Language.

# DatePlus

 DatePlus gives the date n days after date. DatePlusgives the date n units after date. DatePlusgives a date offset by units of each specified size. DatePlus[n]gives the date n days after the current date. DatePlus[offset]gives the date with the specified offset from the current date.
• DatePlus gives the date n days before date.
• Dates can be specified in the following forms:
 {y,m,d} year, month, day {y,m} the first day of the specified month {y} January 1 of the year y "string" date as a string () {y,m,d,h,m,s} precise time time absolute time specification
• Possible offset units are , , , , , , , .
• is taken to be equivalent to , etc.
• DatePlus gives results in the same general format as date.
• When date is a list, the result has the same length as date, possibly extended to include the smallest unit in offset. »
Add 35 days to January 1, 2009:
Use a date string as input:
Subtract from a date:
Add 14 weeks to a date:
Add 34 days to the current time:
Add 35 days to January 1, 2009:
 Out[1]=

Use a date string as input:
 Out[1]=

Subtract from a date:
 Out[1]=

Add 14 weeks to a date:
 Out[1]=

Add 34 days to the current time:
 Out[1]=
 Scope   (12)
DatePlus can take dates in the standard format of DateList:
DatePlus can take dates in any format supported by DateString:
If a date is given as , DatePlus returns in the same form:
is interpreted as the first day of the specified month:
{y} is interpreted as January 1 of the specified year:
Add 10 months to a date:
Add 40 weeks to a date:
Add 7 weeks and 2 days:
Lists are extended to include smaller offset units:
Add 1 year to a date list:
Add 1 month and 15 days to the specified date list: