ⴰⴼⴰⵢⵍⵓ:Leapsecond.ut1-utc.svg

Size of this PNG preview of this SVG file: 600 × 480 ⵉⴷ ⴱⵉⴽⵙⵍ. ⵓⴱⵓⵢⵏ ⵢⴰⴹⵏⵉⵏ: 300 × 240 ⵉⴷ ⴱⵉⴽⵙⵍ | 960 × 768 ⵉⴷ ⴱⵉⴽⵙⵍ | 1 280 × 1 024 ⵉⴷ ⴱⵉⴽⵙⵍ | 2 560 × 2 048 ⵉⴷ ⴱⵉⴽⵙⵍ.

ⴰⴼⴰⵢⵍⵓ ⴰⵙⴰⵍⴰⵏ (ⴰⴼⴰⵢⵍⵓ SVG, ⵙ 600 × 480 ⵉⴷ ⴱⵉⴽⵙⵍ, ⵜⵉⴷⴷⵉ ⵏ ⵓⴼⴰⵢⵍⵓ: 305 KB)

ⵉⴽⴽⴰ ⴷ ⵓⴼⴰⵢⵍⵓ ⴰ Wikimedia Commons. ⵉⵖⵢ ⴰⴷ ⵉⵜⵜⵓⵙⵎⵔⵙ ⴳ ⵉⵙⵏⴼⴰⵔⵏ ⵢⴰⴹⵏⵉⵏ. ⵢⵓⵎⵏ ⵓⴳⵍⴰⵎ ⴳ ⵜⴰⵙⵏⴰ ⵏ ⵓⴳⵍⴰⵎ ⵏ ⵓⴼⴰⵢⵍⵓ ⴳ ⴷⴷⴰⵡ ⴷⴰ.

Any autoconfirmed user can overwrite this file from the same source. Please ensure that overwrites comply with the guideline.

ⴰⵙⴳⵣⵍ

ⴰⴳⵍⴰⵎ

English: Plot showing the difference UT1−UTC in seconds. Vertical segments correspond to leap seconds. Red part of graph was prediction (future values) at the time the file was made.

Čeština: Graf zobrazující rozdíl UT1−UTC v sekundách. Svislé úseky odpovídají přestupným sekundám. Červená část je předpověď budoucích hodnot (v okamžiku vytvoření grafu).

ⴰⵙⴰⴽⵓⴷ

2017-01-05, last update 2024-07-04

ⴰⵙⴰⴳⵎ

Own work using: https://maia.usno.navy.mil/ser7/finals.all

ⴰⵎⴳⴰⵢ

Tomia (ⴰⵎⵙⴰⵡⴰⵍ · ⵜⵓⵎⵓⵜⵉⵏ)
Petr Kadlec (ⴰⵎⵙⴰⵡⴰⵍ · ⵜⵓⵎⵓⵜⵉⵏ)
Gordon P. Hemsley (ⴰⵎⵙⴰⵡⴰⵍ · ⵜⵓⵎⵓⵜⵉⵏ)
RP88 (ⴰⵎⵙⴰⵡⴰⵍ · ⵜⵓⵎⵓⵜⵉⵏ)

ⵜⵓⵔⴰⴳⵜ
(ⵙⵙⵎⵔⵙ ⴷⴰⵖ ⴰⴼⴰⵢⵍⵓ ⴰ)

This work is ineligible for copyright and therefore in the public domain because it consists entirely of information that is common property and contains no original authorship.

	This file is made available under the Creative Commons CC0 1.0 Universal Public Domain Dedication.
	The person who associated a work with this deed has dedicated the work to the public domain by waiving all of their rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law. You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission. CC0falsefalse

Other versions

Original PNG image (2005)
Derivative SVG image (2008)

SVG genesis

The SVG code is valid.

This plot was created with Gnuplot.

Source code

Generated using the following scripts:

wget https://maia.usno.navy.mil/ser7/finals.all

cut -c 1-2,3-4,5-6,8-15,58,59-68 --output-delimiter " " finals.all > finals-cut.txt
grep "P" finals-cut.txt > finals-pred.txt
grep "I" finals-cut.txt > finals-iers.txt

gnuplot leapsecs.gnuplot

leapsecs.gnuplot contains commands for gnuplot 6.0:

set xdata time
set timefmt "%Y-%m-%d"
set format x "%Y"
set xrange ["1973-01-01":"2026-01-01"]
set yrange [-0.9:0.9]
set xtics "1970-01-01", 5 years
set mxtics time 1 year
set grid lt 3 lc 0
set terminal svg font "Arial,16"
set style line 1 lc rgb 'dark-green' lt 1
set style line 2 lc rgb 'red' lt 1
unset key
makedate(y,m,d,j) = sprintf("%04d-%02d-%02d", (j <= 51543 ? 1900 + y : 2000 + y), m, d)
set output 'Leapsecond.ut1-utc.svg'
plot \
    'finals-iers.txt' \
        using (makedate($1,$2,$3,$4)):($6) \
        with lines linestyle 1 title 'Measured', \
    'finals-pred.txt' \
        using (makedate($1,$2,$3,$4)):($6) \
        with lines linestyle 2 title 'Predicted'
set output

ⴰⵎⵣⵔⵓⵢ ⵏ ⵓⴼⴰⵢⵍⵓ

ⴽⵍⵉⴽⵉ ⵖⴼ ⵓⵙⴰⴽⵓⴷ/ⴰⴽⵓⴷ ⵃⵎⴰ ⴰⴷ ⵜⵙⴽⵏⴷ ⴰⴼⴰⵢⵍⵓ ⵎⴰⵏⵎⴽ ⴰⴷ ⵢⴰⴷⵍⵍⵉ ⵉⴳⴰ ⴳ ⵡⴰⴽⵓⴷ ⴰⵏⵏ.

	ⴰⵙⴰⴽⵓⴷ/ⴰⴽⵓⴷ	ⵉⵎⵏⴰⴷⵏ	ⴰⵏⵙⵙⵎⵔⵙ	ⴰⵖⴼⴰⵡⴰⵍ
ⴰⵎⵉⵔⴰⵏ	21:29, 4 ⵢⵓⵍⵢⵓⵣ 2024	600 × 480 (305 KB)	RP88	Updated to use data available as of 2024-07-04. Updated to use gunplot 6.0.
	03:57, 3 ⵉⵏⵏⴰⵢⵔ 2024	600 × 480 (301 KB)	RP88	Updated to use data available as of 2024-01-03. Prediction through 2025.
	04:17, 4 ⵖⵓⵛⵜ 2023	600 × 480 (298 KB)	RP88	Updated to use data available as of 2023-08-03. Prediction through 2024.
	16:17, 30 ⵛⵓⵜⴰⵏⴱⵉⵔ 2022	600 × 480 (246 KB)	Mormegil	updated to current data
	09:59, 1 ⵉⴱⵔⵉⵔ 2022	600 × 480 (242 KB)	Mormegil	updated to current data
	10:02, 4 ⵉⵏⵏⴰⵢⵔ 2021	600 × 480 (238 KB)	Mormegil	updated to current data
	09:16, 29 ⵉⴱⵔⵉⵔ 2020	600 × 480 (235 KB)	Mormegil	update data
	15:00, 24 ⵛⵓⵜⴰⵏⴱⵉⵔ 2019	600 × 480 (234 KB)	Mormegil	updated to current data with prediction until 2020-09
	11:46, 23 ⵉⵏⵏⴰⵢⵔ 2019	600 × 480 (231 KB)	Mormegil	updated to current data
	08:47, 13 ⵖⵓⵛⵜ 2018	600 × 480 (229 KB)	Mormegil	updated to current data