diff --git a/asia b/asia
index a95a934b56e8..b7aa43a6b555 100644
--- a/asia
+++ b/asia
@@ -1,4 +1,4 @@
-# @(#)asia	8.48
+# @(#)asia	8.50
 # This file is in the public domain, so clarified as of
 # 2009-05-17 by Arthur David Olson.
 
@@ -196,6 +196,41 @@ Zone	Asia/Bahrain	3:22:20 -	LMT	1920		# Al Manamah
 # http://www.thaindian.com/newsportal/business/bangladesh-to-continue-indefinitely-with-advanced-time_100259987.html
 # </a>
 
+# From Alexander Krivenyshev (2009-12-24):
+# According to Bangladesh newspaper "The Daily Star,"
+# Bangladesh will change its clock back to Standard Time on Dec 31, 2009.
+#
+# Clock goes back 1-hr on Dec 31 night.
+# <a href="http://www.thedailystar.net/newDesign/news-details.php?nid=119228">
+# http://www.thedailystar.net/newDesign/news-details.php?nid=119228
+# </a>
+# and
+# <a href="http://www.worldtimezone.com/dst_news/dst_news_bangladesh05.html">
+# http://www.worldtimezone.com/dst_news/dst_news_bangladesh05.html
+# </a>
+#
+# "...The government yesterday decided to put the clock back by one hour
+# on December 31 midnight and the new time will continue until March 31,
+# 2010 midnight. The decision came at a cabinet meeting at the Prime
+# Minister's Office last night..."
+
+# From Danvin Ruangchan (2009-12-24):
+# ...the news mentions DST will be turned off again 7 months after March
+# 31st on Oct 31, 2010.
+
+# From Arthur David Olson (2009-12-26):
+# Indeed, "The government will advance again the Banglasdesh Standard
+# Time by one one hour on March 31 next year by enforcing the Daylight
+# Saving Time (DST) for seven months. It will continue till October 31
+# until further notice." I take that last sentence as the
+# establishment of a rule.
+
+# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
+Rule	Dhaka	2009	only	-	Jun	29	23:00	1	S
+Rule	Dhaka	2010	only	-	Jan	1	0:00	-	-
+Rule	Dhaka	2010	max	-	Mar	31	23:00	1	S
+Rule	Dhaka	2010	max	-	Nov	1	0:00	-	-
+
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Asia/Dhaka	6:01:40 -	LMT	1890
 			5:53:20	-	HMT	1941 Oct    # Howrah Mean Time?
@@ -203,8 +238,8 @@ Zone	Asia/Dhaka	6:01:40 -	LMT	1890
 			5:30	-	IST	1942 Sep
 			6:30	-	BURT	1951 Sep 30
 			6:00	-	DACT	1971 Mar 26 # Dacca Time
-			6:00	-	BDT	2009 Jun 19 23:00 # Bangladesh Time
-			6:00	1:00	BDST
+			6:00	-	BDT	2009
+			6:00	Dhaka	BD%sT
 
 # Bhutan
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]