Find Overlapping Times

Find Overlapping Times helps you detect common time ranges between multiple sets of start and end times. It’s useful for comparing availability, scheduling meetings, or analyzing data streams where time intervals intersect.

Paste your input above or import a file below.
No file chosen
Supported file types: .txt, .log, .csv
Total items: 0
Options
Sort output
Remove duplicates
Merge adjacent overlaps

How to Use:

  1. Paste your time ranges into the input box using the format HH:MM - HH:MM, one per line.
  2. The tool scans all entries and checks which time intervals overlap.
  3. Overlapping periods are listed in the right-hand output area.
  4. Use Copy Output or Export to File to save the results.
  5. You can also load time data from a .txt or .csv file using the Choose File button.
  6. Use Clear All to reset the input and output.

What Find Overlapping Times can do:

  • Scans multiple time ranges and compares them for overlap.
  • Works on HH:MM formatted intervals.
  • Handles any number of input lines with accurate range comparison.
  • Outputs readable intervals where overlap occurs.
  • Shows changes with a flash animation for live feedback.

Tool Options:

  • Sort input ranges: Ensures entries are ordered chronologically before analysis.
  • Merge identical overlaps: Combines duplicate overlap results into one clean output.
  • Show input labels: Adds original line numbers for traceability in the output.

Example:

Input:

08:00 - 10:00
09:30 - 11:00
13:00 - 14:00
13:30 - 15:00

Output:

Overlap: 09:30 - 10:00
Overlap: 13:30 - 14:00

Common Use Cases:

Find Overlapping Times is great for coordinating team schedules, checking time window conflicts, or resolving access periods in systems that use time intervals. It saves time by automatically handling all the comparison logic for you.

Useful Tools & Suggestions:

To create test data, Generate Overlapping Times gives you built-in overlaps to analyze. And if you need to stretch the concept across days, Find Overlapping Dates helps uncover conflicts on the calendar too.

Related Tools