4 Services from kalender.halowerk.com

Calculates a target date by counting a given number of working days forward or backward from a start date, accounting for public holidays in Germany, Austria, and Switzerland (including regional/cantonal variants) and optional custom days off.

Returns public holidays for Germany (by state, including Augsburg special case), Austria (by state), or Switzerland (by canton) for a given year, computing moveable feasts from Easter rather than a static table.

Calculates the number of working days in a date range for Germany, Austria, and Switzerland, accounting for weekends, public holidays (national and regional), and custom days off.

Returns the UTC offset and next DST transition for a given point in time, resolved by geographic coordinates (via offline polygon lookup) or IANA time zone name.