Update time zone data files to tzdata release 2016g.

DST law changes in Turkey.  Historical corrections for America/Los_Angeles,
Europe/Kirov, Europe/Moscow, Europe/Samara, and Europe/Ulyanovsk.
Rename Asia/Rangoon to Asia/Yangon, with a backward compatibility link.

The IANA crew continue their campaign to replace invented time zone
abbrevations with numeric GMT offsets.  This update changes numerous zones
in Antarctica and the former Soviet Union, for instance Antarctica/Casey
now reports "+08" not "AWST" in the pg_timezone_names view.  I kept these
abbreviations in the tznames/ data files, however, so that we will still
accept them for input.  (We may want to start trimming those files someday,
but today is not that day.)

An exception is that since IANA no longer claims that "AMT" is in use
in Armenia for GMT+4, I replaced it in the Default file with GMT-4,
corresponding to Amazon Time which is in use in South America.  It may be
that that meaning is also invented and IANA will drop it in a future
update; but for now, it seems silly to give pride of place to a meaning
not traceable to IANA over one that is.

5 files changed, 54 insertions, 99 deletions

diff --git a/src/timezone/tznames/Antarctica.txt b/src/timezone/tznames/Antarctica.txt
index 942e81993af..1a0729dcbb1 100644
--- a/src/timezone/tznames/Antarctica.txt
+++ b/src/timezone/tznames/Antarctica.txt
@@ -16,12 +16,9 @@ CLST   -10800 D  # Chile Summer Time
 CLT    America/Santiago  # Chile Time
                  #     (America/Santiago)
                  #     (Antarctica/Palmer)
-DAVT    Antarctica/Davis  # Davis Time (Antarctica)
-                 #     (Antarctica/Davis)
-DDUT    36000    # Dumont-d`Urville Time (Antarctica)
-                 #     (Antarctica/DumontDUrville)
-MAWT    Antarctica/Mawson  # Mawson Time (Antarctica)
-                 #     (Antarctica/Mawson)
+DAVT    Antarctica/Davis  # Davis Time (Antarctica) (obsolete)
+DDUT    36000    # Dumont-d`Urville Time (Antarctica) (obsolete)
+MAWT    Antarctica/Mawson  # Mawson Time (Antarctica) (obsolete)
 MIST    39600    # Macquarie Island Time
                  #     (Antarctica/Macquarie)
 NZDT    46800 D  # New Zealand Daylight Time
@@ -30,9 +27,6 @@ NZDT    46800 D  # New Zealand Daylight Time
 NZST    43200    # New Zealand Standard Time
                  #     (Antarctica/McMurdo)
                  #     (Pacific/Auckland)
-ROTT   -10800    # Rothera Time
-                 #     (Antarctica/Rothera)
-SYOT    10800    # Syowa Time
-                 #     (Antarctica/Syowa)
-VOST    21600    # Vostok time
-                 #     (Antarctica/Vostok)
+ROTT   -10800    # Rothera Time (obsolete)
+SYOT    10800    # Syowa Time (obsolete)
+VOST    21600    # Vostok time (obsolete)
diff --git a/src/timezone/tznames/Asia.txt b/src/timezone/tznames/Asia.txt
index f17dbfe9f24..c834b6f1e42 100644
--- a/src/timezone/tznames/Asia.txt
+++ b/src/timezone/tznames/Asia.txt
@@ -19,11 +19,9 @@ AMST    Asia/Yerevan  # Armenia Summer Time
 # CONFLICT! AMT is not unique
 # Other timezones:
 #  - AMT: Amazon Time (America)
-AMT     Asia/Yerevan  # Armenia Time
-                 #     (Asia/Yerevan)
+AMT     Asia/Yerevan  # Armenia Time (obsolete)
 ANAST   Asia/Anadyr  # Anadyr Summer Time (obsolete)
-ANAT    Asia/Anadyr  # Anadyr Time
-                 #     (Asia/Anadyr)
+ANAT    Asia/Anadyr  # Anadyr Time (obsolete)
 AQTST   Asia/Aqtau  # Aqtau Summer Time (obsolete)
 AQTT    Asia/Aqtau  # Aqtau Time (obsolete)
 # CONFLICT! AST is not unique
@@ -42,8 +40,7 @@ AST     10800    # Arabia Standard Time
                  #     (Asia/Qatar)
                  #     (Asia/Riyadh)
 AZST    Asia/Baku  # Azerbaijan Summer Time (obsolete)
-AZT     Asia/Baku  # Azerbaijan Time
-                 #     (Asia/Baku)
+AZT     Asia/Baku  # Azerbaijan Time (obsolete)
 BDT     21600    # Bangladesh Time
                  #     (Asia/Dhaka)
 BNT     28800    # Brunei Darussalam Time
@@ -115,8 +112,7 @@ EET      7200    # East-Egypt Time
                  #     (Europe/Zaporozhye)
 EIT     32400    # East Indonesia Time (obsolete, WIT is now preferred)
 GEST    Asia/Tbilisi  # Georgia Summer Time (obsolete)
-GET     Asia/Tbilisi  # Georgia Time
-                 #     (Asia/Tbilisi)
+GET     Asia/Tbilisi  # Georgia Time (obsolete)
 # CONFLICT! GST is not unique
 # Other timezones:
 # - GST: South Georgia Time (Atlantic)
@@ -138,8 +134,7 @@ IDT     10800 D  # Israel Daylight Time
 IRDT    Asia/Tehran  # Iran Daylight Time
                  #     (Asia/Tehran)
 IRKST   Asia/Irkutsk  # Irkutsk Summer Time (obsolete)
-IRKT    Asia/Irkutsk  # Irkutsk Time
-                 #     (Asia/Irkutsk)
+IRKT    Asia/Irkutsk  # Irkutsk Time (obsolete)
 IRST    Asia/Tehran  # Iran Standard Time
                  #     (Asia/Tehran)
 IRT     12600    # Iran Time (not in IANA database)
@@ -160,21 +155,18 @@ JST     32400    # Japan Standard Time
                  #     (Asia/Tokyo)
 KDT     36000 D  # Korean Daylight Time (not in IANA database)
 KGST    21600 D  # Kyrgyzstan Summer Time (obsolete)
-KGT     Asia/Bishkek  # Kyrgyzstan Time
-                 #     (Asia/Bishkek)
+KGT     Asia/Bishkek  # Kyrgyzstan Time (obsolete)
 KRAST   Asia/Krasnoyarsk  # Krasnoyarsk Summer Time (obsolete)
-KRAT    Asia/Krasnoyarsk  # Krasnoyarsk Time
-                 #     (Asia/Krasnoyarsk)
+KRAT    Asia/Krasnoyarsk  # Krasnoyarsk Time (obsolete)
 KST     Asia/Pyongyang    # Korean Standard Time
                  #     (Asia/Pyongyang)
 KST     32400    # Korean Standard Time
                  #     (Asia/Seoul)
 LKT     Asia/Colombo  # Lanka Time (obsolete)
 MAGST   Asia/Magadan  # Magadan Summer Time (obsolete)
-MAGT    Asia/Magadan  # Magadan Time
-                 #     (Asia/Magadan)
+MAGT    Asia/Magadan  # Magadan Time (obsolete)
 MMT     23400    # Myanmar Time
-                 #     (Asia/Rangoon)
+                 #     (Asia/Yangon)
 MYT     28800    # Malaysia Time
                  #     (Asia/Kuala_Lumpur)
                  #     (Asia/Kuching)
@@ -183,12 +175,10 @@ NOVT    Asia/Novosibirsk  # Novosibirsk Time (obsolete)
 NPT     20700    # Nepal Time
                  #     (Asia/Katmandu)
 OMSST   Asia/Omsk  # Omsk Summer Time (obsolete)
-OMST    Asia/Omsk  # Omsk Time
-                 #     (Asia/Omsk)
+OMST    Asia/Omsk  # Omsk Time (obsolete)
 ORAT    Asia/Oral  # Oral Time (obsolete)
 PETST   Asia/Kamchatka  # Petropavlovsk-Kamchatski Summer Time (obsolete)
-PETT    Asia/Kamchatka  # Petropavlovsk-Kamchatski Time
-                 #     (Asia/Kamchatka)
+PETT    Asia/Kamchatka  # Petropavlovsk-Kamchatski Time (obsolete)
 PHT     28800    # Philippine Time
                  #     (Asia/Manila)
 PKT     18000    # Pakistan Time
@@ -197,18 +187,14 @@ PKST    21600 D  # Pakistan Summer Time
                  #     (Asia/Karachi)
 QYZT    21600    # Kizilorda Time (obsolete)
 SAKST   Asia/Sakhalin  # Sakhalin Summer Time (obsolete)
-SAKT    Asia/Sakhalin  # Sakhalin Time
-                 #     (Asia/Sakhalin)
+SAKT    Asia/Sakhalin  # Sakhalin Time (obsolete)
 SGT     Asia/Singapore  # Singapore Time
                  #     (Asia/Singapore)
-SRET    39600    # Srednekolymsk Time
-                 #     (Asia/Srednekolymsk)
-TJT     18000    # Tajikistan Time
-                 #     (Asia/Dushanbe)
+SRET    39600    # Srednekolymsk Time (obsolete)
+TJT     18000    # Tajikistan Time (obsolete)
 TLT     32400    # East Timor Time
                  #     (Asia/Dili)
-TMT     Asia/Ashgabat  # Turkmenistan Time
-                 #     (Asia/Ashgabat)
+TMT     Asia/Ashgabat  # Turkmenistan Time (obsolete)
 ULAST   32400 D  # Ulan Bator Summer Time
                  #     (Asia/Ulaanbaatar)
 ULAT    Asia/Ulaanbaatar  # Ulan Bator Time
@@ -216,12 +202,9 @@ ULAT    Asia/Ulaanbaatar  # Ulan Bator Time
 UZST    21600 D  # Uzbekistan Summer Time
                  #     (Asia/Samarkand)
                  #     (Asia/Tashkent)
-UZT     18000    # Uzbekistan Time
-                 #     (Asia/Samarkand)
-                 #     (Asia/Tashkent)
+UZT     18000    # Uzbekistan Time (obsolete)
 VLAST   Asia/Vladivostok  # Vladivostok Summer Time (obsolete)
-VLAT    Asia/Vladivostok  # Vladivostok Time
-                 #     (Asia/Vladivostok)
+VLAT    Asia/Vladivostok  # Vladivostok Time (obsolete)
 WIB     25200    # Waktu Indonesia Barat
                  #     (Asia/Jakarta)
                  #     (Asia/Pontianak)
@@ -232,8 +215,6 @@ WITA    28800    # Waktu Indonesia Tengah
 XJT     21600    # Xinjiang Time
                  #     (Asia/Urumqi)
 YAKST   Asia/Yakutsk  # Yakutsk Summer Time (obsolete)
-YAKT    Asia/Yakutsk  # Yakutsk Time
-                 #     (Asia/Yakutsk)
+YAKT    Asia/Yakutsk  # Yakutsk Time (obsolete)
 YEKST   21600 D  # Yekaterinburg Summer Time (obsolete)
-YEKT    Asia/Yekaterinburg  # Yekaterinburg Time
-                 #     (Asia/Yekaterinburg)
+YEKT    Asia/Yekaterinburg  # Yekaterinburg Time (obsolete)
diff --git a/src/timezone/tznames/Default b/src/timezone/tznames/Default
index 7644e264b02..6f6e46e6b42 100644
--- a/src/timezone/tznames/Default
+++ b/src/timezone/tznames/Default
@@ -234,14 +234,9 @@ WGT    -10800    # West Greenland Time
 
 #################### ANTARCTICA ####################
 
-DAVT    Antarctica/Davis  # Davis Time (Antarctica)
-                 #     (Antarctica/Davis)
-DDUT    36000    # Dumont-d'Urville Time (Antarctica)
-                 #     (Antarctica/DumontDUrville)
-                 #     (Antarctica/Palmer)
-                 #     (America/Santiago)
-MAWT    Antarctica/Mawson  # Mawson Time (Antarctica)
-                 #     (Antarctica/Mawson)
+DAVT    Antarctica/Davis  # Davis Time (Antarctica) (obsolete)
+DDUT    36000    # Dumont-d'Urville Time (Antarctica) (obsolete)
+MAWT    Antarctica/Mawson  # Mawson Time (Antarctica) (obsolete)
 
 #################### ASIA ####################
 
@@ -256,15 +251,17 @@ AMST    Asia/Yerevan  # Armenia Summer Time
                  #     (Asia/Yerevan)
 # CONFLICT! AMT is not unique
 # Other timezones:
-#  - AMT: Amazon Time (America)
-AMT     Asia/Yerevan  # Armenia Time
-                 #     (Asia/Yerevan)
+#  - AMT: Armenia Time (Asia)
+AMT    -14400    # Amazon Time
+                 #     (America/Boa_Vista)
+                 #     (America/Campo_Grande)
+                 #     (America/Cuiaba)
+                 #     (America/Manaus)
+                 #     (America/Porto_Velho)
 ANAST   Asia/Anadyr  # Anadyr Summer Time (obsolete)
-ANAT    Asia/Anadyr  # Anadyr Time
-                 #     (Asia/Anadyr)
+ANAT    Asia/Anadyr  # Anadyr Time (obsolete)
 AZST    Asia/Baku  # Azerbaijan Summer Time (obsolete)
-AZT     Asia/Baku  # Azerbaijan Time
-                 #     (Asia/Baku)
+AZT     Asia/Baku  # Azerbaijan Time (obsolete)
 BDT     21600    # Bangladesh Time
                  #     (Asia/Dhaka)
 BNT     28800    # Brunei Darussalam Time
@@ -274,8 +271,7 @@ BTT     21600    # Bhutan Time
                  #     (Asia/Thimphu)
 CCT     28800    # China Coastal Time (not in IANA database)
 GEST    Asia/Tbilisi  # Georgia Summer Time (obsolete)
-GET     Asia/Tbilisi  # Georgia Time
-                 #     (Asia/Tbilisi)
+GET     Asia/Tbilisi  # Georgia Time (obsolete)
 HKT     28800    # Hong Kong Time (not in IANA database)
 ICT     25200    # Indochina Time
                  #     (Asia/Bangkok)
@@ -285,8 +281,7 @@ ICT     25200    # Indochina Time
 IDT     10800 D  # Israel Daylight Time
                  #     (Asia/Jerusalem)
 IRKST   Asia/Irkutsk  # Irkutsk Summer Time (obsolete)
-IRKT    Asia/Irkutsk  # Irkutsk Time
-                 #     (Asia/Irkutsk)
+IRKT    Asia/Irkutsk  # Irkutsk Time (obsolete)
 IRT     12600    # Iran Time (not in IANA database)
 # CONFLICT! IST is not unique
 # Other timezones:
@@ -299,19 +294,16 @@ JST     32400    # Japan Standard Time
                  #     (Asia/Tokyo)
 KDT     36000 D  # Korean Daylight Time (not in IANA database)
 KGST    21600 D  # Kyrgyzstan Summer Time (obsolete)
-KGT     Asia/Bishkek  # Kyrgyzstan Time
-                 #     (Asia/Bishkek)
+KGT     Asia/Bishkek  # Kyrgyzstan Time (obsolete)
 KRAST   Asia/Krasnoyarsk  # Krasnoyarsk Summer Time (obsolete)
-KRAT    Asia/Krasnoyarsk  # Krasnoyarsk Time
-                 #     (Asia/Krasnoyarsk)
+KRAT    Asia/Krasnoyarsk  # Krasnoyarsk Time (obsolete)
 KST     32400    # Korean Standard Time
                  #     (Asia/Seoul)
 LKT     Asia/Colombo  # Lanka Time (obsolete)
 MAGST   Asia/Magadan  # Magadan Summer Time (obsolete)
-MAGT    Asia/Magadan  # Magadan Time
-                 #     (Asia/Magadan)
+MAGT    Asia/Magadan  # Magadan Time (obsolete)
 MMT     23400    # Myanmar Time
-                 #     (Asia/Rangoon)
+                 #     (Asia/Yangon)
 MYT     28800    # Malaysia Time
                  #     (Asia/Kuala_Lumpur)
                  #     (Asia/Kuching)
@@ -320,11 +312,9 @@ NOVT    Asia/Novosibirsk  # Novosibirsk Time (obsolete)
 NPT     20700    # Nepal Time
                  #     (Asia/Katmandu)
 OMSST   Asia/Omsk  # Omsk Summer Time (obsolete)
-OMST    Asia/Omsk  # Omsk Time
-                 #     (Asia/Omsk)
+OMST    Asia/Omsk  # Omsk Time (obsolete)
 PETST   Asia/Kamchatka  # Petropavlovsk-Kamchatski Summer Time (obsolete)
-PETT    Asia/Kamchatka  # Petropavlovsk-Kamchatski Time
-                 #     (Asia/Kamchatka)
+PETT    Asia/Kamchatka  # Petropavlovsk-Kamchatski Time (obsolete)
 PHT     28800    # Philippine Time
                  #     (Asia/Manila)
 PKT     18000    # Pakistan Time
@@ -333,10 +323,8 @@ PKST    21600 D  # Pakistan Summer Time
                  #     (Asia/Karachi)
 SGT     Asia/Singapore  # Singapore Time
                  #     (Asia/Singapore)
-TJT     18000    # Tajikistan Time
-                 #     (Asia/Dushanbe)
-TMT     Asia/Ashgabat  # Turkmenistan Time
-                 #     (Asia/Ashgabat)
+TJT     18000    # Tajikistan Time (obsolete)
+TMT     Asia/Ashgabat  # Turkmenistan Time (obsolete)
 ULAST   32400 D  # Ulan Bator Summer Time
                  #     (Asia/Ulaanbaatar)
 ULAT    Asia/Ulaanbaatar  # Ulan Bator Time
@@ -344,20 +332,15 @@ ULAT    Asia/Ulaanbaatar  # Ulan Bator Time
 UZST    21600 D  # Uzbekistan Summer Time
                  #     (Asia/Samarkand)
                  #     (Asia/Tashkent)
-UZT     18000    # Uzbekistan Time
-                 #     (Asia/Samarkand)
-                 #     (Asia/Tashkent)
+UZT     18000    # Uzbekistan Time (obsolete)
 VLAST   Asia/Vladivostok  # Vladivostok Summer Time (obsolete)
-VLAT    Asia/Vladivostok  # Vladivostok Time
-                 #     (Asia/Vladivostok)
+VLAT    Asia/Vladivostok  # Vladivostok Time (obsolete)
 XJT     21600    # Xinjiang Time
                  #     (Asia/Urumqi)
 YAKST   Asia/Yakutsk  # Yakutsk Summer Time (obsolete)
-YAKT    Asia/Yakutsk  # Yakutsk Time
-                 #     (Asia/Yakutsk)
+YAKT    Asia/Yakutsk  # Yakutsk Time (obsolete)
 YEKST   21600 D  # Yekaterinburg Summer Time (obsolete)
-YEKT    Asia/Yekaterinburg  # Yekaterinburg Time
-                 #     (Asia/Yekaterinburg)
+YEKT    Asia/Yekaterinburg  # Yekaterinburg Time (obsolete)
 
 #################### ATLANTIC ####################
 
@@ -669,8 +652,7 @@ RET     14400    # Reunion Time
                  #     (Indian/Reunion)
 SCT     14400    # Seychelles Time
                  #     (Indian/Mahe)
-TFT     18000    # Kerguelen Time
-                 #     (Indian/Kerguelen)
+TFT     18000    # Kerguelen Time (obsolete)
 
 #################### PACIFIC ####################
 
diff --git a/src/timezone/tznames/Europe.txt b/src/timezone/tznames/Europe.txt
index 5d6a594ab51..85d18d9d2dd 100644
--- a/src/timezone/tznames/Europe.txt
+++ b/src/timezone/tznames/Europe.txt
@@ -191,8 +191,7 @@ MSK     Europe/Moscow  # Moscow Time
                  #     (Europe/Moscow)
                  #     (Europe/Volgograd)
 SAMST   Europe/Samara  # Samara Summer Time (obsolete)
-SAMT    Europe/Samara  # Samara Time
-                 #     (Europe/Samara)
+SAMT    Europe/Samara  # Samara Time (obsolete)
 VOLT    Europe/Volgograd  # Volgograd Time (obsolete)
 WEST     3600 D  # Western Europe Summer Time
                  #     (Africa/Casablanca)
diff --git a/src/timezone/tznames/Indian.txt b/src/timezone/tznames/Indian.txt
index 634660075ff..12842d366f0 100644
--- a/src/timezone/tznames/Indian.txt
+++ b/src/timezone/tznames/Indian.txt
@@ -35,5 +35,4 @@ RET     14400    # Reunion Time
                  #     (Indian/Reunion)
 SCT     14400    # Seychelles Time
                  #     (Indian/Mahe)
-TFT     18000    # Kerguelen Time
-                 #     (Indian/Kerguelen)
+TFT     18000    # Kerguelen Time (obsolete)