Time Calculators

Date & Time Calculations

15 calculators

Available Tools

Free online timezone converter. Convert time between cities like New York, London, Tokyo, Sydney and more. Supports UTC offsets and DST.

Free time duration calculator. Calculate hours, minutes, seconds between times. Add or subtract time intervals easily.

Free work hours calculator. Track daily working hours with breaks. Calculate weekly totals for payroll and time management.

Free overtime calculator. Calculate overtime pay with 1.5x and 2x rates. Track regular and overtime hours for accurate payroll.

Free days until calculator. Count days remaining to holidays, birthdays, vacations, and deadlines. Easy date countdown tool.

Free business days calculator. Count working days between dates or add business days. Exclude weekends and holidays easily.

Free week number calculator. Find ISO week number for any date. Shows day of year, quarter, and year progress.

Free Unix timestamp converter. Convert epoch time to date and date to timestamp. Supports seconds and milliseconds.

Free leap year calculator. Check if any year is a leap year. Find all leap years in a date range with explanations.

Free date difference calculator. Calculate days, weeks, months, and years between any two dates.

Free time card calculator. Calculate work hours from clock in/out times. Track breaks and overtime for payroll processing.

Free time zone meeting planner. Find optimal meeting times across timezones. See working hour overlaps for global teams.

Free age in days calculator. Find your exact age in days, hours, minutes, seconds. Discover fun life statistics.

Free add days calculator. Add or subtract days, weeks, months, years from any date. Calculate future and past dates easily.

Free countdown calculator. Create live countdowns to events, holidays, and deadlines. Track time remaining in real-time.