Bankday vs Nager.Date
Nager.Date is a free, open-source public holiday service, and a great fit for hobby projects and simple holiday lookups. Bankday adds what production finance systems need on top: settlement calendars, business-day math and support.
| Bankday | Nager.Date | |
|---|---|---|
| Price | Free tier, then from $19/month | Free, open source |
| Public holidays by country | 247 countries | Many countries (see their docs) |
| Payment-rail calendars (Fed/ACH, TARGET2, Bacs) | Yes | Not offered |
| Stock exchange calendars | 28 exchanges | Not offered |
| Business-day math (add, count, roll) | Yes | Not offered |
| Joint calendars (e.g. us-fed,eu-target2) | Yes | No |
| Self-hosting | No (hosted API) | Yes |
Nager.Date details are from their own site as of October 2026; check there for current terms.
Which should you use?
Pick Nager.Date for free public-holiday lookups you can self-host. Pick Bankday when you need bank and market calendars and correct business-day arithmetic.
Not sure which calendar you need? Read why bank and market holidays differ or try the business days calculator.
Try Bankday free
1,000 requests/month free. No credit card. Your key appears instantly.