First Quarter Calendar 2025. The quarters calculator has four (4) functionalities, it is used to get the number of quarters between two dates, add quarters, subtract quarters and determine the fiscal quarter of a. 2025 is a regular year, with 365 days.

To set sunday as the first day of the week, click the ‘boxes’ tab and select ‘sunday’ in ‘first day of the week’. To record your appointments, holidays, activities, birthday, etc., click on the box for the day concerned.