[tz] [PATCH] Change Cayman abbreviations to CIST and CIDST
eggert at cs.ucla.edu
Tue Dec 8 16:22:59 UTC 2015
A bill to implement US-style daylight saving time has been
published by the Cayman Islands Gazette, so it looks like our
clock predictions are still on track. The bill gives
Cayman-specific time zone abbreviations, though, so we need to
change tzdata for that.
* NEWS: Document this.
* northamerica (Cayman): New rule. It is like the US since 2016,
but with different LETTER/S.
(America/Cayman): Use it.
NEWS | 3 +++
northamerica | 17 +++++++++++------
2 files changed, 14 insertions(+), 6 deletions(-)
diff --git a/NEWS b/NEWS
index 121e0e4..ac0369c 100644
@@ -11,6 +11,9 @@ Unreleased, experimental changes
America/Metlakatla switched from PST all year to AKST/AKDT on
2015-11-01 at 02:00. (Thanks to Steffen Thorsen.)
+ Time zone abbreviations for America/Cayman have been changed from
+ EST/EDT to CIST/CIDST, as per the 2015-11-25 daylight-saving bill.
Changes affecting future time stamps
Asia/Tehran now has DST predictions for the year 2038 and later,
diff --git a/northamerica b/northamerica
index e916524..38a8beb 100644
@@ -2688,16 +2688,21 @@ Zone Atlantic/Bermuda -4:19:18 - LMT 1930 Jan 1 2:00 # Hamilton
# Cayman Is
-# From Paul Eggert (2015-05-15):
+# From Paul Eggert (2015-12-08):
# The Cayman government has decided to introduce DST in 2016, the idea being
-# to keep in sync with New York. The legislation hasn't passed but the change
-# seems quite likely. See: Meade B. Cayman 27.
+# to keep in sync with New York. The enabling legislation has been published,
+# and seems quite likely to be approved. See Cayman Islands
+# Extraordinary Gazette No. 92 (2015-11-25), Supp. 2, which specifies the
+# abbreviations CIST and CIDST.
+# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
+Rule Cayman 2016 max - Mar Sun>=8 2:00 1:00 D
+Rule Cayman 2016 max - Nov Sun>=1 2:00 0 -
Zone America/Cayman -5:25:32 - LMT 1890 # Georgetown
-5:07:11 - KMT 1912 Feb # Kingston Mean Time
- -5:00 - EST 2016
- -5:00 US E%sT
+ -5:00 Cayman CI%sST
# Costa Rica
More information about the tz