# HG changeset patch
# User cmlenz
# Date 1180973643 0
# Node ID 3b23c60191e0ccc7a868b1bd158220de88ca0aa7
# Parent  2e143f1a000352e6e987a3b6e2363d2665f4b005
Add note on daylight savings time.

diff --git a/doc/formatting.txt b/doc/formatting.txt
--- a/doc/formatting.txt
+++ b/doc/formatting.txt
@@ -225,6 +225,12 @@
     >>> format_datetime(dt, 'H:mm zzzz', tzinfo=british, locale='en_US')
     u'16:30 British Summer Time'
 
+Here, the given UTC time is adjusted to the "Europe/London" time-zone, and
+daylight savings time is taken into account. Daylight savings time is also
+applied to ``format_time``, but because the actual date is unknown in that
+case, the current day is assumed to determine whether DST or standard time
+should be used.
+
  .. _`pytz`: http://pytz.sourceforge.net/