date-fnsvs@js-temporal/polyfill

Winner: date-fns

date-fns is the safest overall pick in this comparison

date-fns55/100

@js-temporal/polyfill24/100

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

Weekly npm downloads

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

date-fns@js-temporal/polyfill

View as table

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

date-fns details @js-temporal/polyfill details