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Shift FIT activity time

Wrong time zone, or a clock that jumped. Rewrite every record.

Files stay on this device

1Select a file

2Clock

3Run

Select a file first.

Your file is processed in your browser and never uploaded.

What this format is

Wrong timezone, or a watch that woke up in 2038. This rewrites every record clock so Garmin Connect and Strava show the day you actually rode.

How to get the file

  1. From Garmin Connect
  2. 1. Export original FIT, drop it here, import the download in Garmin Connect.
  1. From Strava
  2. 1. Strava keeps the original start. Re-upload the adjusted FIT as a new activity if you need the calendar date fixed.

What is kept and what is lost

KeptLost or missing
GPS and sensorsThe old timestamps

Questions

Shift or set start — which one?

Type an ISO start to pin the first record to that instant. Otherwise every timestamp moves by the number of seconds you enter (negative is earlier).

Does GPS stay put?

Yes. Only clocks change. Sensors stay on the same points.

Will Strava change the original activity?

No. Re-upload the adjusted FIT as a new activity if you need the calendar date fixed there.