Below is an hours calculator. Use the easy-to-enter inputs and enter a starting time and an ending time, and optionally two dates. We'll add up the number of hours and show results in multiple formats.
Hours Calculator Between Two Times
Using the Hours Calculator
To use the tool to find the hourly difference in two times, enter:
- Start time: Enter when the activity or time-span began
- End time: Enter the time to end the calculation
The tool auto-calculates as you type. Click the Now button to instantly fill in the current time.
Results show in multiple formats: hours and minutes, total minutes, and decimal hours (handy for timesheets).
Same Day vs. Multiple Days mode
By default, the calculator is in Same Day mode - perfect for calculating shift lengths. If your end time is earlier than your start time, the tool assumes the span crosses midnight (read: up to 23 hours and 59 minutes maximum).
Switch to Multiple Days mode to calculate hours across different dates. Date pickers will appear next to each time input, letting you calculate spans like "Monday 1/7 8 AM to Wednesday 1/9 5 PM".
Is Noon AM or PM? Is Midnight AM or PM?
Traditionally, 12:00 PM is noon and 12:00 AM is midnight.
What if the time-span crosses midnight (the start time is later than end time)?
The tool has no issue calculating times which go overnight and cross midnight. In Same Day mode, enter any time-frame less than 24 hours and it can do the math. For longer spans, switch to Multiple Days mode.
Hours Between Two Times
This tool is most often used to calculate the length of a shift. Especially when a shift is overnight, it can be tricky to calculate the number of hours total. The hours between calculator clears up that trickiness and makes it easy to compute time-spans that cross noon and midnight.
The calculator is also great to plan and prepare with activities later in the day. Just hit the Now button for the start time, enter when the event starts, and we'll tell you how long you have left to get ready.
Hopefully the tool is useful to show the time duration when entering a start and end time. I've also built an hours between dates tool, hours in the past tool, and hours in the future tool. If you're tracking work hours, try my simple time card calculator.
Date and Birthday Calculators, and Others
Got your fix of the hours difference calculator? There are many more where that came from... you might even say, there are hours of fun awaiting you!
We also have many investment or economics calculators. Have fun!
