---
title: "Durations and schedules - Free calculators | Numequo"
description: "Calculate elapsed time and compare schedules, including intervals across midnight. Includes the formula and practical examples."
canonical: "https://www.numequo.com/time/durations-schedules/"
locale: "en"
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[Numequo](https://www.numequo.com/) › [Time](https://www.numequo.com/time/)

# Durations and schedules

Calculate elapsed time and compare schedules, including intervals across midnight.

## Available tools

- [Time Duration Calculator](https://www.numequo.com/time/durations-schedules/duration-calculator/) - Find the elapsed time between two clock times.
- [Work Hours Calculator](https://www.numequo.com/time/durations-schedules/work-hours-calculator/) - Calculate your net working hours, deduct breaks and compare the result with your daily target.
- [Duration Add or Subtract Calculator](https://www.numequo.com/time/durations-schedules/duration-add-subtract-calculator/) - Add or subtract two durations expressed as hours and minutes.
- [Weekly Timesheet Calculator](https://www.numequo.com/time/durations-schedules/weekly-timesheet-calculator/) - Calculate weekly working hours from daily start times, end times and unpaid breaks.
- [Decimal Hours Converter](https://www.numequo.com/time/durations-schedules/decimal-hours-converter/) - Convert hours and minutes to decimal hours, or decimal hours back to a duration.
- [Arrival Time Calculator](https://www.numequo.com/time/durations-schedules/arrival-time-calculator/) - Add a travel duration to a departure time to find the arrival time.
- [Time Zone Difference Calculator](https://www.numequo.com/time/durations-schedules/time-zone-difference-calculator/) - Compare two time zones on a chosen date, including daylight-saving changes.
- [Time Zone Meeting Planner](https://www.numequo.com/time/durations-schedules/time-zone-meeting-planner/) - Convert a meeting date and time from one time zone to another.
- [Time Adder](https://www.numequo.com/time/durations-schedules/time-adder/) - Add several hour-and-minute durations in one calculation.

## Calculate elapsed time and compare schedules, including intervals across midnight.

Duration calculations become more reliable when breaks, midnight crossings and timezone differences are made explicit.

Enter each interval as it happened, then use the weekly or multi-duration tools when several days or tasks must be combined.

### Tools to explore next

- [Time Duration Calculator](https://www.numequo.com/time/durations-schedules/duration-calculator/) - Find the elapsed time between two clock times.
- [Work Hours Calculator](https://www.numequo.com/time/durations-schedules/work-hours-calculator/) - Calculate your net working hours, deduct breaks and compare the result with your daily target.
- [Weekly Timesheet Calculator](https://www.numequo.com/time/durations-schedules/weekly-timesheet-calculator/) - Calculate weekly working hours from daily start times, end times and unpaid breaks.
- [Duration Add or Subtract Calculator](https://www.numequo.com/time/durations-schedules/duration-add-subtract-calculator/) - Add or subtract two durations expressed as hours and minutes.
- [Time Zone Difference Calculator](https://www.numequo.com/time/durations-schedules/time-zone-difference-calculator/) - Compare two time zones on a chosen date, including daylight-saving changes.

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