@@ -3715,21 +3715,70 @@ Zone Asia/Hebron 2:20:23 - LMT 1900 Oct
3715
3715
# be immediately followed by 1845-01-01; see R.H. van Gent's
3716
3716
# History of the International Date Line
3717
3717
# https://webspace.science.uu.nl/~gent0113/idl/idl_philippines.htm
3718
- # The rest of the data entries are from Shanks & Pottenger.
3719
-
3720
- # From Jesper Nørgaard Welen (2006-04-26):
3721
- # ... claims that Philippines had DST last time in 1990:
3722
- # http://story.philippinetimes.com/p.x/ct/9/id/145be20cc6b121c0/cid/3e5bbccc730d258c/
3723
- # [a story dated 2006-04-25 by Cris Larano of Dow Jones Newswires,
3724
- # but no details]
3725
-
3726
- # From Paul Eggert (2014-08-14):
3727
- # The following source says DST may be instituted November-January and again
3728
- # March-June, but this is not definite. It also says DST was last proclaimed
3729
- # during the Ramos administration (1992-1998); but again, no details.
3730
- # Carcamo D. PNoy urged to declare use of daylight saving time.
3731
- # Philippine Star 2014-08-05
3732
- # http://www.philstar.com/headlines/2014/08/05/1354152/pnoy-urged-declare-use-daylight-saving-time
3718
+
3719
+ # From P Chan (2021-05-10):
3720
+ # Here's a fairly comprehensive article in Japanese:
3721
+ # https://wiki.suikawiki.org/n/Philippine%20Time
3722
+ # (2021-05-16):
3723
+ # According to the references listed in the article,
3724
+ # the periods that the Philippines (Manila) observed DST or used +9 are:
3725
+ #
3726
+ # 1936-10-31 24:00 to 1937-01-15 24:00
3727
+ # (Proclamation No. 104, Proclamation No. 126)
3728
+ # 1941-12-15 24:00 to 1945-11-30 24:00
3729
+ # (Proclamation No. 789, Proclamation No. 20)
3730
+ # 1954-04-11 24:00 to 1954-06-04 24:00
3731
+ # (Proclamation No. 13, Proclamation No. 33)
3732
+ # 1977-03-27 24:00 to 1977-09-21 24:00
3733
+ # (Proclamation No. 1629, Proclamation No. 1641)
3734
+ # 1990-05-21 00:00 to 1990-07-28 24:00
3735
+ # (National Emergency Memorandum Order No. 17, Executive Order No. 415)
3736
+ #
3737
+ # Proclamation No. 104 ... October 30, 1936
3738
+ # https://www.officialgazette.gov.ph/1936/10/30/proclamation-no-104-s-1936/
3739
+ # Proclamation No. 126 ... January 15, 1937
3740
+ # https://www.officialgazette.gov.ph/1937/01/15/proclamation-no-126-s-1937/
3741
+ # Proclamation No. 789 ... December 13, 1941
3742
+ # https://www.officialgazette.gov.ph/1941/12/13/proclamation-no-789-s-1941/
3743
+ # Proclamation No. 20 ... November 11, 1945
3744
+ # https://www.officialgazette.gov.ph/1945/11/11/proclamation-no-20-s-1945/
3745
+ # Proclamation No. 13 ... April 6, 1954
3746
+ # https://www.officialgazette.gov.ph/1954/04/06/proclamation-no-13-s-1954/
3747
+ # Proclamation No. 33 ... June 3, 1954
3748
+ # https://www.officialgazette.gov.ph/1954/06/03/proclamation-no-33-s-1954/
3749
+ # Proclamation No. 1629 ... March 25, 1977
3750
+ # https://www.officialgazette.gov.ph/1977/03/25/proclamation-no-1629-s-1977/
3751
+ # Proclamation No. 1641 ...May 26, 1977
3752
+ # https://www.officialgazette.gov.ph/1977/05/26/proclamation-no-1641-s-1977/
3753
+ # National Emergency Memorandum Order No. 17 ... May 2, 1990
3754
+ # https://www.officialgazette.gov.ph/1990/05/02/national-emergency-memorandum-order-no-17-s-1990/
3755
+ # Executive Order No. 415 ... July 20, 1990
3756
+ # https://www.officialgazette.gov.ph/1990/07/20/executive-order-no-415-s-1990/
3757
+ #
3758
+ # During WWII, Proclamation No. 789 fixed two periods of DST. The first period
3759
+ # was set to continue only until January 31, 1942. But Manila was occupied by
3760
+ # the Japanese earlier in the month....
3761
+ #
3762
+ # For the date of the adoption of standard time, Shank[s] gives 1899-05-11.
3763
+ # The article is not able to state the basis of that. I guess it was based on
3764
+ # a US War Department Circular issued on that date.
3765
+ # https://books.google.com/books?id=JZ1PAAAAYAAJ&pg=RA3-PA8
3766
+ #
3767
+ # However, according to other sources, standard time was adopted on
3768
+ # 1899-09-06. Also, the LMT was GMT+8:03:52
3769
+ # https://books.google.com/books?id=MOYIAQAAIAAJ&pg=PA521
3770
+ # https://books.google.com/books?id=lSnqqatpYikC&pg=PA21
3771
+ #
3772
+ # From Paul Eggert (2024-09-05):
3773
+ # The penultimate URL in P Chan's email refers to page 521 of
3774
+ # Selga M, The Time Service in the Philippines.
3775
+ # Proc Pan-Pacific Science Congress. Vol. 1 (1923), 519-532.
3776
+ # It says, "The change from the meridian 120° 58' 04" to the 120th implied a
3777
+ # change of 3 min. 52s.26 in time; consequently on 6th September, 1899,
3778
+ # Manila Observatory gave the noon signal 3 min. 52s.26 later than before".
3779
+ #
3780
+ # Wikipedia says the US declared Manila liberated on March 4, 1945;
3781
+ # this doesn't affect clocks, just our time zone abbreviation and DST flag.
3733
3782
3734
3783
# From Paul Goyette (2018-06-15) with URLs updated by Guy Harris (2024-02-15):
3735
3784
# In the Philippines, there is a national law, Republic Act No. 10535
@@ -3747,24 +3796,26 @@ Zone Asia/Hebron 2:20:23 - LMT 1900 Oct
3747
3796
# influence of the sources. There is no current abbreviation for DST,
3748
3797
# so use "PDT", the usual American style.
3749
3798
3750
- # From P Chan (2021-05-10):
3751
- # Here's a fairly comprehensive article in Japanese:
3752
- # https://wiki.suikawiki.org/n/Philippine%20Time
3753
- # From Paul Eggert (2021-05-10):
3754
- # The info in the Japanese table has not been absorbed (yet) below.
3755
-
3756
3799
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
3757
- Rule Phil 1936 only - Nov 1 0:00 1:00 D
3758
- Rule Phil 1937 only - Feb 1 0:00 0 S
3759
- Rule Phil 1954 only - Apr 12 0:00 1:00 D
3760
- Rule Phil 1954 only - Jul 1 0:00 0 S
3761
- Rule Phil 1978 only - Mar 22 0:00 1:00 D
3762
- Rule Phil 1978 only - Sep 21 0:00 0 S
3800
+ Rule Phil 1936 only - Oct 31 24:00 1:00 D
3801
+ Rule Phil 1937 only - Jan 15 24:00 0 S
3802
+ Rule Phil 1941 only - Dec 15 24:00 1:00 D
3803
+ # The following three rules were canceled by Japan:
3804
+ #Rule Phil 1942 only - Jan 31 24:00 0 S
3805
+ #Rule Phil 1942 only - Mar 1 0:00 1:00 D
3806
+ #Rule Phil 1942 only - Jun 30 24:00 0 S
3807
+ Rule Phil 1945 only - Nov 30 24:00 0 S
3808
+ Rule Phil 1954 only - Apr 11 24:00 1:00 D
3809
+ Rule Phil 1954 only - Jun 4 24:00 0 S
3810
+ Rule Phil 1977 only - Mar 27 24:00 1:00 D
3811
+ Rule Phil 1977 only - Sep 21 24:00 0 S
3812
+ Rule Phil 1990 only - May 21 0:00 1:00 D
3813
+ Rule Phil 1990 only - Jul 28 24:00 0 S
3763
3814
# Zone NAME STDOFF RULES FORMAT [UNTIL]
3764
- Zone Asia/Manila -15:56:00 - LMT 1844 Dec 31
3765
- 8:04:00 - LMT 1899 May 11
3766
- 8:00 Phil P%sT 1942 May
3767
- 9:00 - JST 1944 Nov
3815
+ Zone Asia/Manila -15:56:08 - LMT 1844 Dec 31
3816
+ 8:03:52 - LMT 1899 Sep 6 4:00u
3817
+ 8:00 Phil P%sT 1942 Feb 11 24:00
3818
+ 9:00 - JST 1945 Mar 4
3768
3819
8:00 Phil P%sT
3769
3820
3770
3821
# Qatar
0 commit comments