FM / zoneinfo

/usr/share/zoneinfo

Name	Size	Mode	Actions
Africa/	-	0755	rm
America/	-	0755	rm
Antarctica/	-	0755	rm
Arctic/	-	0755	rm
Asia/	-	0755	rm
Atlantic/	-	0755	rm
Australia/	-	0755	rm
Brazil/	-	0755	rm
Canada/	-	0755	rm
Chile/	-	0755	rm
Etc/	-	0755	rm
Europe/	-	0755	rm
Indian/	-	0755	rm
Mexico/	-	0755	rm
Pacific/	-	0755	rm
posix/	-	0755	rm
right/	-	0755	rm
US/	-	0755	rm
CET	2944	0644	edit dl rm
CST6CDT	3559	0644	edit dl rm
Cuba	2411	0644	edit dl rm
EET	2245	0644	edit dl rm
Egypt	9309	0644	edit dl rm
Eire	3517	0644	edit dl rm
EST	177	0644	edit dl rm
EST5EDT	3535	0644	edit dl rm
GB	3661	0644	edit dl rm
GB-Eire	3661	0644	edit dl rm
GMT	118	0644	edit dl rm
GMT+0	118	0644	edit dl rm
GMT-0	118	0644	edit dl rm
GMT0	118	0644	edit dl rm
Greenwich	118	0644	edit dl rm
Hongkong	1233	0644	edit dl rm
HST	312	0644	edit dl rm
Iceland	156	0644	edit dl rm
Iran	1248	0644	edit dl rm
iso3166.tab	4791	0644	edit dl rm
Israel	9113	0644	edit dl rm
Jamaica	481	0644	edit dl rm
Japan	292	0644	edit dl rm
Kwajalein	309	0644	edit dl rm
leapseconds	3257	0644	edit dl rm
Libya	641	0644	edit dl rm
MET	2944	0644	edit dl rm
MST	343	0644	edit dl rm
MST7MDT	2443	0644	edit dl rm
Navajo	2443	0644	edit dl rm
NZ	2434	0644	edit dl rm
NZ-CHAT	2047	0644	edit dl rm
Poland	2679	0644	edit dl rm
Portugal	3495	0644	edit dl rm
posixrules	3535	0644	edit dl rm
PRC	556	0644	edit dl rm
PST8PDT	2835	0644	edit dl rm
ROC	748	0644	edit dl rm
ROK	629	0644	edit dl rm
Singapore	384	0644	edit dl rm
Turkey	1914	0644	edit dl rm
tzdata.zi	109754	0644	edit dl rm
UCT	118	0644	edit dl rm
Universal	118	0644	edit dl rm
UTC	118	0644	edit dl rm
W-SU	1486	0644	edit dl rm
WET	3495	0644	edit dl rm
zone.tab	18822	0644	edit dl rm
zone1970.tab	17597	0644	edit dl rm
Zulu	118	0644	edit dl rm

Edit: /usr/share/zoneinfo/leapseconds (3257B)

# Allowance for leap seconds added to each time zone file.

# This file is in the public domain.

# This file is generated automatically from the data in the public-domain
# NIST/IERS format leap-seconds.list file, which can be copied from
# <https://hpiers.obspm.fr/iers/bul/bulc/ntp/leap-seconds.list>
# or, in a variant with different comments, from
# <ftp://ftp.boulder.nist.gov/pub/time/leap-seconds.list>.
# For more about leap-seconds.list, please see
# The NTP Timescale and Leap Seconds
# <https://www.eecis.udel.edu/~mills/leap.html>.

# The rules for leap seconds are specified in Annex 1 (Time scales) of:
# Standard-frequency and time-signal emissions.
# International Telecommunication Union - Radiocommunication Sector
# (ITU-R) Recommendation TF.460-6 (02/2002)
# <https://www.itu.int/rec/R-REC-TF.460-6-200202-I/>.
# The International Earth Rotation and Reference Systems Service (IERS)
# periodically uses leap seconds to keep UTC to within 0.9 s of UT1
# (a proxy for Earth's angle in space as measured by astronomers)
# and publishes leap second data in a copyrighted file
# <https://hpiers.obspm.fr/iers/bul/bulc/Leap_Second.dat>.
# See: Levine J. Coordinated Universal Time and the leap second.
# URSI Radio Sci Bull. 2016;89(4):30-6. doi:10.23919/URSIRSB.2016.7909995
# <https://ieeexplore.ieee.org/document/7909995>.

# There were no leap seconds before 1972, as no official mechanism
# accounted for the discrepancy between atomic time (TAI) and the earth's
# rotation.  The first ("1 Jan 1972") data line in leap-seconds.list
# does not denote a leap second; it denotes the start of the current definition
# of UTC.

# All leap-seconds are Stationary (S) at the given UTC time.
# The correction (+ or -) is made at the given time, so in the unlikely
# event of a negative leap second, a line would look like this:
# Leap	YEAR	MON	DAY	23:59:59	-	S
# Typical lines look like this:
# Leap	YEAR	MON	DAY	23:59:60	+	S
Leap	1972	Jun	30	23:59:60	+	S
Leap	1972	Dec	31	23:59:60	+	S
Leap	1973	Dec	31	23:59:60	+	S
Leap	1974	Dec	31	23:59:60	+	S
Leap	1975	Dec	31	23:59:60	+	S
Leap	1976	Dec	31	23:59:60	+	S
Leap	1977	Dec	31	23:59:60	+	S
Leap	1978	Dec	31	23:59:60	+	S
Leap	1979	Dec	31	23:59:60	+	S
Leap	1981	Jun	30	23:59:60	+	S
Leap	1982	Jun	30	23:59:60	+	S
Leap	1983	Jun	30	23:59:60	+	S
Leap	1985	Jun	30	23:59:60	+	S
Leap	1987	Dec	31	23:59:60	+	S
Leap	1989	Dec	31	23:59:60	+	S
Leap	1990	Dec	31	23:59:60	+	S
Leap	1992	Jun	30	23:59:60	+	S
Leap	1993	Jun	30	23:59:60	+	S
Leap	1994	Jun	30	23:59:60	+	S
Leap	1995	Dec	31	23:59:60	+	S
Leap	1997	Jun	30	23:59:60	+	S
Leap	1998	Dec	31	23:59:60	+	S
Leap	2005	Dec	31	23:59:60	+	S
Leap	2008	Dec	31	23:59:60	+	S
Leap	2012	Jun	30	23:59:60	+	S
Leap	2015	Jun	30	23:59:60	+	S
Leap	2016	Dec	31	23:59:60	+	S

# UTC timestamp when this leap second list expires.
# Any additional leap seconds will come after this.
# This Expires line is commented out for now,
# so that pre-2020a zic implementations do not reject this file.
#Expires 2025	Dec	28	00:00:00

# POSIX timestamps for the data in this file:
#updated 1736208000 (2025-01-07 00:00:00 UTC)
#expires 1766880000 (2025-12-28 00:00:00 UTC)

#	Updated through IERS Bulletin C (https://hpiers.obspm.fr/iers/bul/bulc/bulletinc.dat)
#	File expires on 28 December 2025

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