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 | [Calendarific](https://calendarific.com/) | Worldwide Holidays | `apiKey` | Yes | Unknown |
 | [Church Calendar](http://calapi.inadiutorium.cz/) | Catholic liturgical calendar | No | No | Unknown |
 | [Czech Namedays Calendar](https://svatky.adresa.info) | Lookup for a name and returns nameday date | No | No | Unknown |
+| [DigiDates](https://digidates.de/en/) | Various date and time calculations | No | Yes | Yes |
 | [Festivo Public Holidays](https://docs.getfestivo.com/docs/products/public-holidays-api/intro) | Fastest and most advanced public holiday and observance service on the market | `apiKey` | Yes | Yes |
 | [Google Calendar](https://developers.google.com/google-apps/calendar/) | Display, create and modify Google calendar events | `OAuth`| Yes | Unknown |
 | [Hebrew Calendar](https://www.hebcal.com/home/developer-apis) | Convert between Gregorian and Hebrew, fetch Shabbat and Holiday times, etc | No | No | Unknown |