Online Planning & Calculation Suite

Date & Time Calculators

Fast, zero-tracking, client-side date tools designed for students, project managers, payroll specialists, and daily planning.

Calculate exact chronological age in years, months, and days with next birthday countdown.

Calculate the total days, weeks, months, and years between two arbitrary dates.

Find out exactly how many days, weeks, or sleeps are left until an upcoming event or festival.

Calculate total working days between two dates, excluding weekends and official Indian public holidays.

Determine the current ISO 8601 week number, start/end dates of any week, and total weeks in the year.

Instant multi-city time comparison between India Standard Time (IST) and major global time zones.