YouTube Milliseconds Timer

Millisecond-accurate timestamps, jump to any moment, an A→B interval timer, one-click copy, and a watch-time stats dashboard — all inside YouTube's native player.

Available in the Chrome Web Store
YouTube Milliseconds Timer in action

Millisecond timestamps

Time displays in M:SS.mmm format directly in the player — no overlays, no clutter. Toggle on or off anytime.

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One-click copy

A copy button next to the timestamp grabs the exact moment instantly — great for notes, subtitles, or editing.

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Jump to timestamp

Press G (or click the target button), type a time in SS.mmm / M:SS.mmm / H:MM:SS.mmm, and the video jumps there with millisecond precision.

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Interval timer A→B

Mark two points with [ and ], see the exact delta down to the millisecond, and copy it with one click.

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Watch-time stats

Total time, today, daily average, a 7-day bar chart, and a monthly calendar heatmap — all stored locally on your device.

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Customize your toolbar

Show or hide each player-bar button — copy, milliseconds toggle, jump, interval A/B — so you keep only the controls you use.