@js-temporal/polyfillvsdate-fns

Winner: date-fns

date-fns is the safest overall pick in this comparison

@js-temporal/polyfill24/100

date-fns55/100

Measured evidence

Health scores: date-fns: 55/100, @js-temporal/polyfill: 24/100.
Releases in the last 90 days: date-fns: 0, @js-temporal/polyfill: 0.
GitHub activity: date-fns: 306 commits, @js-temporal/polyfill: 1 commits.
Known vulnerabilities: date-fns: 0, @js-temporal/polyfill: 0.
OpenSSF scores: date-fns: 4.6/10, @js-temporal/polyfill: 4.5/10.

Caveats

The score favors date-fns, but ecosystem fit and API ergonomics can still outweigh the measured gap.

Package details

Risk signals

Measured metrics — each value links to its source.

Signal	@js-temporal/polyfill	date-fns
Release cadence	0 releases in last 90 days	0 releases in last 90 days
Last release	485 days ago	61 days ago
Open issues	47 open issues	662 open issues
Bus factor	top contributor makes 61.73% of commits	top contributor makes 56.52% of commits
Commit activity	1 commits in the last 90 days	306 commits in the last 90 days
Pull request activity	1 PRs opened in the last 90 days	20 PRs opened in the last 90 days
OpenSSF score	4.5/10	4.6/10
Vulnerabilities	0 known vulnerabilities

Weekly npm downloads

Daily downloads aggregated to weekly sums (last 5 years).

@js-temporal/polyfilldate-fns

View as table

Week	@js-temporal/polyfill	date-fns
2026-07-20	1,714,074	14,683,229
2026-07-13	1,677,974	62,856,390
2026-07-06	1,146,629	86,523,486
2026-06-29	1,125,076	87,777,785
2026-06-22	1,429,497	91,162,216
2026-06-15	1,396,209	91,628,205
2026-06-08	1,453,308	90,937,354
2026-06-01	889,325	74,275,759
2026-05-25	1,269,490	82,010,864
2026-05-18	1,211,522	86,471,916
2026-05-11	1,232,059	86,964,290
2026-05-04	1,107,276	83,309,062
2026-04-27	1,035,979	80,851,333
2026-04-20	1,042,357	83,526,750
2026-04-13	960,469	80,948,334
2026-04-06	880,109	66,406,203
2026-03-30	850,573	65,400,724
2026-03-23	908,790	68,057,468
2026-03-16	850,646	54,364,282
2026-03-09	816,902	54,053,344
2026-03-02	746,109	51,415,853
2026-02-23	687,212	49,615,084
2026-02-16	564,231	44,370,746
2026-02-09	547,368	45,101,755
2026-02-02	614,520	45,765,250
2026-01-26	612,590	43,465,780
2026-01-19	586,594	41,438,425
2026-01-12	564,500	39,730,005
2026-01-05	439,192	36,195,317
2025-12-29	207,591	19,781,051
2025-12-22	188,973	21,162,548
2025-12-15	445,592	36,882,226
2025-12-08	415,710	39,282,458
2025-12-01	419,636	39,790,228
2025-11-24	326,461	34,781,887
2025-11-17	366,928	36,955,377
2025-11-10	356,827	35,777,411
2025-11-03	349,168	35,829,563
2025-10-27	385,475	34,968,652
2025-10-20	399,153	35,948,447
2025-10-13	359,822	34,596,191
2025-10-06	380,104	34,290,995
2025-09-29	360,073	33,483,697
2025-09-22	353,687	33,187,154
2025-09-15	301,609	33,327,316
2025-09-08	314,391	33,353,079
2025-09-01	281,857	31,125,286
2025-08-25	242,831	32,525,472
2025-08-18	252,892	32,190,089
2025-08-11	249,233	30,479,519
2025-08-04	253,953	31,411,546
2025-07-28	245,913	34,415,414
2025-07-21	226,338	31,463,398
2025-07-14	215,582	31,105,320
2025-07-07	237,026	31,641,230
2025-06-30	218,270	30,591,240
2025-06-23	240,744	35,325,576
2025-06-16	244,589	35,042,892
2025-06-09	238,005	32,812,082
2025-06-02	268,401	31,940,934
2025-05-26	316,587	29,258,982
2025-05-19	388,697	32,146,414
2025-05-12	202,174	30,756,163
2025-05-05	185,456	30,011,266
2025-04-28	168,527	27,466,829
2025-04-21	165,367	28,910,910
2025-04-14	158,125	28,635,801
2025-04-07	172,394	30,671,833
2025-03-31	170,253	31,336,550
2025-03-24	171,070	27,201,323
2025-03-17	176,517	27,190,508
2025-03-10	162,990	27,197,541
2025-03-03	150,461	26,307,781
2025-02-24	159,340	26,647,019
2025-02-17	156,783	25,385,194
2025-02-10	158,068	26,626,434
2025-02-03	167,867	25,815,707
2025-01-27	138,577	24,432,673
2025-01-20	133,702	23,828,406
2025-01-13	129,166	23,948,610
2025-01-06	127,316	22,605,084
2024-12-30	65,484	12,348,342
2024-12-23	67,566	11,019,585
2024-12-16	126,303	23,528,771
2024-12-09	142,451	24,484,237
2024-12-02	135,159	24,805,697
2024-11-25	128,355	22,991,907
2024-11-18	150,028	25,977,834
2024-11-11	138,969	23,670,887
2024-11-04	148,640	23,738,497
2024-10-28	135,599	22,514,600
2024-10-21	134,796	23,362,038
2024-10-14	132,672	22,273,154
2024-10-07	136,736	22,828,374
2024-09-30	138,544	21,589,850
2024-09-23	150,913	22,242,052
2024-09-16	151,888	21,483,321
2024-09-09	151,454	21,727,961
2024-09-02	141,301	20,487,770
2024-08-26	138,179	20,886,967
2024-08-19	128,374	20,477,772
2024-08-12	121,531	19,118,289
2024-08-05	129,758	20,038,540
2024-07-29	128,594	20,274,975
2024-07-22	134,319	20,261,627
2024-07-15	130,506	20,401,174
2024-07-08	129,730	20,180,665
2024-07-01	124,199	18,661,781
2024-06-24	130,810	20,078,436
2024-06-17	129,019	19,530,688
2024-06-10	126,663	20,228,524
2024-06-03	125,880	20,236,061
2024-05-27	121,247	18,868,171
2024-05-20	121,572	19,075,188
2024-05-13	130,190	19,433,941
2024-05-06	121,859	18,075,936
2024-04-29	119,512	17,466,998
2024-04-22	134,077	19,166,787
2024-04-15	131,583	19,157,872
2024-04-08	126,792	18,501,929
2024-04-01	131,161	17,946,998
2024-03-25	124,729	16,909,733
2024-03-18	142,428	20,003,567
2024-03-11	147,552	20,419,971
2024-03-04	197,812	19,797,222
2024-02-26	199,419	20,170,674
2024-02-19	147,865	18,881,092
2024-02-12	149,812	18,208,832
2024-02-05	149,023	18,432,067
2024-01-29	147,026	18,879,090
2024-01-22	145,396	18,216,028
2024-01-15	140,042	17,423,473
2024-01-08	133,282	17,629,201
2024-01-01	98,822	13,731,127
2023-12-25	59,556	9,832,186
2023-12-18	111,747	16,973,702
2023-12-11	124,149	17,939,825
2023-12-04	125,622	17,255,909
2023-11-27	121,096	18,529,829
2023-11-20	100,265	16,929,806
2023-11-13	104,085	18,251,120
2023-11-06	107,524	18,533,269
2023-10-30	71,105	12,819,389
2023-10-23	99,500	18,525,929
2023-10-16	105,901	18,691,692
2023-10-09	93,901	17,516,802
2023-10-02	95,700	17,352,640
2023-09-25	97,491	17,769,908
2023-09-18	87,184	17,649,996
2023-09-11	83,697	17,492,353
2023-09-04	78,551	16,824,954
2023-08-28	87,850	17,080,703
2023-08-21	80,835	16,804,796
2023-08-14	75,961	15,888,515
2023-08-07	75,660	16,454,375
2023-07-31	74,687	16,583,346
2023-07-24	84,174	16,506,627
2023-07-17	82,455	16,716,038
2023-07-10	87,368	16,891,749
2023-07-03	75,625	15,337,192
2023-06-26	68,604	16,309,034
2023-06-19	71,221	16,076,587
2023-06-12	75,435	16,687,649
2023-06-05	70,962	16,148,396
2023-05-29	64,666	15,465,434
2023-05-22	67,901	16,051,191
2023-05-15	64,969	15,921,380
2023-05-08	59,344	15,891,901
2023-05-01	50,220	14,428,502
2023-04-24	62,054	15,825,434
2023-04-17	58,267	15,439,121
2023-04-10	51,269	14,738,808
2023-04-03	45,460	14,661,388
2023-03-27	49,213	16,411,689
2023-03-20	48,058	16,285,447
2023-03-13	52,634	16,349,543
2023-03-06	48,762	15,944,926
2023-02-27	53,422	16,275,126
2023-02-20	45,654	15,964,041
2023-02-13	47,263	16,233,116
2023-02-06	44,646	16,210,340
2023-01-30	44,390	16,120,450
2023-01-23	42,246	15,034,691
2023-01-16	42,747	14,777,807
2023-01-09	41,541	15,181,610
2023-01-02	31,077	12,064,388
2022-12-26	16,827	7,659,749
2022-12-19	32,791	12,780,894
2022-12-12	31,428	15,209,028
2022-12-05	32,751	15,442,661
2022-11-28	31,800	15,512,782
2022-11-21	27,336	13,767,956
2022-11-14	30,050	15,653,087
2022-11-07	31,545	15,238,712
2022-10-31	29,975	14,524,906
2022-10-24	28,477	14,853,524
2022-10-17	27,793	14,992,668
2022-10-10	26,713	14,531,635
2022-10-03	24,824	14,537,141
2022-09-26	25,443	14,945,689
2022-09-19	20,663	14,739,121
2022-09-12	23,813	15,337,645
2022-09-05	23,558	14,164,603
2022-08-29	23,109	14,771,585
2022-08-22	22,149	14,878,281
2022-08-15	19,613	13,998,713
2022-08-08	18,885	14,004,982
2022-08-01	19,810	14,149,924
2022-07-25	18,221	14,113,877
2022-07-18	15,783	11,689,559
2022-07-11	15,399	13,682,307
2022-07-04	15,952	12,847,871
2022-06-27	16,054	13,958,763
2022-06-20	15,025	13,691,523
2022-06-13	13,871	13,775,982
2022-06-06	13,081	13,877,542
2022-05-30	10,796	13,438,991
2022-05-23	12,075	13,557,234
2022-05-16	11,006	14,157,301
2022-05-09	10,869	13,760,572
2022-05-02	8,283	12,271,954
2022-04-25	11,844	13,696,956
2022-04-18	11,087	13,525,273
2022-04-11	8,981	13,912,674
2022-04-04	9,787	13,728,801
2022-03-28	9,683	13,744,743
2022-03-21	8,508	13,479,577
2022-03-14	7,766	13,256,488
2022-03-07	7,144	13,148,893
2022-02-28	6,155	12,925,027
2022-02-21	6,160	12,609,019
2022-02-14	5,761	13,578,702
2022-02-07	5,558	13,461,204
2022-01-31	5,219	12,831,767
2022-01-24	4,410	12,757,874
2022-01-17	5,147	12,300,903
2022-01-10	4,726	12,272,910
2022-01-03	4,549	10,003,307
2021-12-27	1,757	5,960,246
2021-12-20	3,523	8,784,623
2021-12-13	4,181	11,945,018
2021-12-06	3,902	12,131,115
2021-11-29	4,184	12,379,495
2021-11-22	3,234	10,821,884
2021-11-15	3,574	11,945,628
2021-11-08	2,669	11,563,584
2021-11-01	2,314	11,202,221
2021-10-25	2,441	11,650,796
2021-10-18	2,035	11,800,317
2021-10-11	2,010	11,430,603
2021-10-04	1,232	11,565,258
2021-09-27	1,422	11,422,652
2021-09-20	1,145	11,356,504
2021-09-13	1,077	11,279,369
2021-09-06	911	10,714,073
2021-08-30	1,249	11,158,028
2021-08-23	902	10,980,061
2021-08-16	897	10,798,580
2021-08-09	670	10,723,793
2021-08-02	425	10,609,705
2021-07-26	47	2,731,359

@js-temporal/polyfill details date-fns details