App: Convert Time (hh:mm:ss) to Seconds or Vice Versa

We recently produced a video for our investors in Q&A format. Interestingly, my video editing software provided the format in hh:mm:ss format, but when I went to build the direct YouTube URLs to advance them to the section in the video, it required the number of seconds appended to the URL. It was quite the pain to convert the format to seconds, so I decided just to build a converter.

Effortless Time Conversion and YouTube Timestamping

This handy time converter simplifies converting between different time formats and adding timestamps to YouTube videos. Whether you need to calculate the total seconds from hours and minutes or find the corresponding time for a specific number of seconds, this tool covers you.

How To Use The Converter

1. Enter the time: Provide the time you want to convert in the Time field. You can use the following formats:
   • hh:mm:ss (hours, minutes, seconds)
   • mm:ss (minutes, seconds)
   • A plain number representing seconds
2. Optional: If you want to add a timestamp to a YouTube video, paste the video URL in the YouTube URL field.
3. Calculate: Click the Calculate button to perform the conversion.
4. View the results:
   • The converted time will be displayed below the input fields in a result.
   • If you provide a YouTube URL, it will be updated with the calculated timestamp appended to it.
5. Copy the YouTube URL (optional): Click the “Copy YouTube URL” button to copy the updated URL to your clipboard. You can then share this URL to direct viewers to the specific time in the video.

Examples

• Convert hours and minutes to seconds:
  • Enter 3:53 (3 minutes, 53 seconds) in the Time field.
  • The result will be 233 seconds.
• Convert seconds to hh:mm:ss format:
  • Enter 12345 (seconds) in the Time field.
  • The result will be 03:25:45.
• Add a Timestamp to a YouTube video:
  • Enter 10:25 (10 minutes, 25 seconds) in the Time field.
  • Paste a YouTube video URL in the YouTube URL field.
  • The YouTube URL will be updated with the timestamp appended (e.g., ?t=625 or &t=625).

Tips

• The converter automatically handles different time formats, so you don’t need to specify whether the input is in seconds or hh:mm:ss.
• The YouTube URL field is optional. You can use the converter solely for time conversion without adding video timestamps.
• The Copy YouTube URL button provides a convenient way to share the timestamped video link.

Enjoy this user-friendly tool for all your time conversion and YouTube timestamping needs!