Below is one 64-second interview written four ways. The text is the same; only the timecodes change.
[HH:MM:SS], a timecode every sentence
The format for interviews, research, legal and medical transcripts. Square brackets keep the timecode apart from the words.
[00:00:00] The lighthouse at Cape Wrath was built in 1828.
[00:00:04] Its light stands 120 meters above the sea, and ships could see it from far away.
[00:00:15] Didn't the keepers get lonely?
[00:00:28] Winter storms cut them off for weeks at a time.
[00:00:37] In January 1862, a supply boat finally reached them.
[00:01:01] "We had run out of candles," one keeper wrote.
SMPTE frames, every 30 seconds
For video editors. The timecode counts frames (here 29.97 fps drop-frame) and starts at 01:00:00;00, the usual first frame of an edit sequence.
01:00:00;11 The lighthouse at Cape Wrath was built in 1828. Its light stands 120 meters above the sea, and ships could see it from far away. Didn't the keepers get lonely? Winter storms cut them off for weeks at a time.
01:00:37;04 In January 1862, a supply boat finally reached them.
01:01:01;15 "We had run out of candles," one keeper wrote.
SRT subtitles
Each cue has a number, a start and end time with milliseconds, and at most two short lines.
1
00:00:00,400 --> 00:00:03,400
The lighthouse at Cape
Wrath was built in 1828.
2
00:00:04,100 --> 00:00:09,400
Its light stands 120 meters above the
sea, and ships could see it from far away.
CSV for a logging sheet
One row per passage, with the timecode, the start and end in seconds and the text, ready for a spreadsheet.
timecode,end_timecode,start_seconds,end_seconds,text
00:00:00,00:00:03,0.400,3.400,The lighthouse at Cape Wrath was built in 1828.
00:00:15,00:00:17,15.300,17.200,Didn't the keepers get lonely?
Make one from your own recording
Drop a file on the time coded transcript generator. The first 10 minutes of up to 3 files a day are free and come back with a timecode on every sentence, in the [HH:MM:SS] format above. Switch formats, frame rates and intervals after it is done; the transcript is relabelled, not transcribed again.