proposed time zone package change for Bangladesh

[Arthur David Olson]

First a note that tzdata2009i.tar.gz does seem to do the expected thing
here on the mother system:

	Script started on Mon Jun 15 06:34:58 2009
	lecserver$ ./zdump -v Asia/Dhaka | grep 2009
	Asia/Dhaka  Fri Jun 19 17:59:59 2009 UTC = Fri Jun 19 23:59:59 2009 BDT isdst=0
	Asia/Dhaka  Fri Jun 19 18:00:00 2009 UTC = Sat Jun 20 01:00:00 2009 BDST isdst=1
	lecserver$ exit

	script done on Mon Jun 15 06:35:15 2009

However, given this morning's note about DST starting at 23:00...
	Finally we've got the official mail regarding DST start time where DST
	start time is mentioned as Jun 19 2009, 23:00 from BTRC (Bangladesh
	Telecommunication Regulatory Commission).

	No DST end date has been announced yet.
...and as a way to both simplify the change and avoid glitches, below
find a proposed change to the "asia" file. Feedback both on the
usefulness of the change and when to push it is welcome.

				--ado

------- asia -------
*** /tmp/geta26023	Mon Jun 15 06:44:15 2009
--- /tmp/getb26023	Mon Jun 15 06:44:15 2009
***************
*** 1,5 ****
  # <pre>
! # @(#)asia	8.34
  # This file is in the public domain, so clarified as of
  # 2009-05-17 by Arthur David Olson.
  
--- 1,5 ----
  # <pre>
! # @(#)asia	8.35
  # This file is in the public domain, so clarified as of
  # 2009-05-17 by Arthur David Olson.
  
***************
*** 165,173 ****
  # http://www.timeanddate.com/news/time/bangladesh-daylight-saving-2009.html
  # </a>
  
! # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
! Rule	Bang	2009	only	-	Jan	1	0:00	0	-
! Rule	Bang	2009	only	-	Jun	20	0:00	1:00	S
  
  # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
  Zone	Asia/Dhaka	6:01:40 -	LMT	1890
--- 165,176 ----
  # http://www.timeanddate.com/news/time/bangladesh-daylight-saving-2009.html
  # </a>
  
! # From A. N. M. Kamrus Saadat (2009-06-15):
! # Finally we've got the official mail regarding DST start time where DST start 
! # time is mentioned as Jun 19 2009, 23:00 from BTRC (Bangladesh 
! # Telecommunication Regulatory Commission). 
! #
! # No DST end date has been announced yet.
  
  # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
  Zone	Asia/Dhaka	6:01:40 -	LMT	1890
***************
*** 176,183 ****
  			5:30	-	IST	1942 Sep
  			6:30	-	BURT	1951 Sep 30
  			6:00	-	DACT	1971 Mar 26 # Dacca Time
! 			6:00	-	BDT	2009 # Bangladesh Time
! 			6:00	Bang	BD%sT
  
  # Bhutan
  # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
--- 179,186 ----
  			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
  
  # Bhutan
  # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]