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Footer Year Update vs TimeZones iCal Library

Same instrument, two spec sheets — measured, not claimed.

APIFooter Year UpdateHEALTHY100TimeZones iCal LibraryHEALTHY97
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms131337
P95 · ms329714
Authnonenone
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Footer Year Update vs TimeZones iCal Library: common questions

Which is more reliable, Footer Year Update or TimeZones iCal Library?

Both are neck-and-neck — Footer Year Update and TimeZones iCal Library each measure 100% uptime over 90 days on our probe schedule. Reliability here is verified from our own scheduled checks; use the 30-day bars above to see which has been steadier lately.

Which is faster, Footer Year Update or TimeZones iCal Library?

Footer Year Update has the lower median latency in our checks — Footer Year Update responds in 131 ms versus TimeZones iCal Library at 337 ms (P50). Tail latency (P95) is in the table above; for most workloads the median is the number that shapes how the API feels.

Do Footer Year Update and TimeZones iCal Library need an API key?

Neither needs a paid key — Footer Year Update is callable with no signup, and TimeZones iCal Library is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call Footer Year Update and TimeZones iCal Library from the browser?

Only TimeZones iCal Library is browser-friendly — it returns CORS headers over HTTPS. Footer Year Update needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are Footer Year Update and TimeZones iCal Library free for commercial use?

Footer Year Update has unclear commercial terms, and TimeZones iCal Library has unclear commercial terms. We track service terms and the data license as separate fields — see the Commercial use and Data license rows above, and confirm both before shipping either in a paid product.