Fact · Transcription
In WebVTT, the thousandths of a second in a timestamp follow a full stop character.
Checked against its source on October 17, 2026
In the source's own words
“A U+002E FULL STOP character (.). Three ASCII digits”
WebVTT: The Web Video Text Tracks Format (Editor's Draft), W3C Timed Text Working Group, W3C, 2026, Timestamp syntax.
Open the original- What it measures
- A WebVTT timestamp is written as hours, minutes, seconds, a full stop and three digits. SRT uses a comma at the same place.
- What it does not show
- Read from the W3C editor's draft, which can change before the specification is final.