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Date & Time Libraries

Libraries for parsing, formatting, and manipulating dates, times, and calendars in programming languages.

The Linux Foundation

by The Linux Foundation

・

53 projects ・ Updated 14 Mar 2025

Project
Contributors
Organizations
Software value
Moment
6,807
1,902
$11M
date-fns
4,513
1,193
$4.9M
Day.js
3,954
919
$591K
D3
2,759
825
$522K
Carbon PHP DateTime Library
2,361
605
$5.9M
Holidays
1,209
174
$52M
dateutil
1,098
369
$547K
Dateparser
1,067
247
$3.8M
Arrow Python
1,038
333
$565K
Timex
928
301
$576K
SwiftDate
855
158
$265K
FreezeGun
790
299
$80K
Joda-Time
730
130
$3.4M
HowardHinnant Date
722
168
$994K
Chrono
651
219
$858K
time Rust
642
264
$1.4M
iCalendar
579
185
$1.2M
Nager.Date
554
70
$758K
date-fns-tz
549
166
$110K
jQuery Timeago
498
194
$110K
Timecop
492
212
$65K
date-fns-jalali
466
64
$1.8M
cron-utils
445
80
$526K
Noda Time
411
93
$2.2M
ms
315
145
$39K
timeago.js
306
104
$87K
js-joda
297
87
$465M
node-dateformat
265
88
$56K
Libical
255
100
$3.3M
Haskell Time Library
233
89
$331K
python-humanize
217
65
$104K
ThreeTen Backport
188
53
$1.8M
tzlocal
186
68
$55K
Cal
185
45
$405K
TZInfo
181
68
$728K
Jackson Datatype Joda
174
64
$9.7M
Chrono-TZ
171
67
$1.5M
Temporal Polyfill
169
61
$509K
pytz
166
60
$573K
isodate
116
47
$58K
Ruby Date Library
105
43
$512K
timelib
104
51
$3.2M
Fecha
88
31
$72K
fugit
86
36
$154K
Now
81
33
$21K
Time Zone Database (tz)
70
27
$470K
parse-duration
61
32
$12K
parse-ms
27
13
$9.5K
Luxon
0
0
$0
Moment.js
0
0
$0
PEP 615: Support for the IANA Time Zone Database in the Standard Library
0
0
$0
chrono
0
0
$0
pretty-ms
0
0
$0
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