svn commit: r209086 - stable/8/bin/date

Brian Somers brian at
Sat Jun 12 02:00:15 UTC 2010

Author: brian
Date: Sat Jun 12 02:00:15 2010
New Revision: 209086

  MFC r208795; additional date -v detail
  PR:		147354
  Approved by:	re (kib)

Directory Properties:
  stable/8/bin/date/   (props changed)

Modified: stable/8/bin/date/date.1
--- stable/8/bin/date/date.1	Sat Jun 12 01:45:29 2010	(r209085)
+++ stable/8/bin/date/date.1	Sat Jun 12 02:00:15 2010	(r209086)
@@ -32,7 +32,7 @@
 .\"     @(#)date.1	8.3 (Berkeley) 4/28/95
 .\" $FreeBSD$
-.Dd June 2, 2007
+.Dd June 3, 2010
 .Dt DATE 1
@@ -219,6 +219,14 @@ When the date is adjusted to a specific 
 the resulting timezone will be set so that the date matches the earlier of
 the two times.
+It is not possible to adjust a date to an invalid absolute day, so using
+the switches
+.Fl v No 31d Fl v No 12m
+will simply fail five months of the year.
+It is therefore usual to set the month before setting the day; using
+.Fl v No 12m Fl v No 31d
+always works.
 Adjusting the date by months is inherently ambiguous because
 a month is a unit of variable length depending on the current date.
 This kind of date adjustment is applied in the most intuitive way.
@@ -339,9 +347,9 @@ will display the last day of February in
 .Dl "Tue Feb 29 03:18:00 GMT 2000"
-So will do the command:
+So will the command:
-.Dl "date -v30d -v3m -v0y -v-1m"
+.Dl "date -v3m -v30d -v0y -v-1m"
 because there is no such date as the 30th of February.

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