SMARTFIT BY TOOLMITRAA
FIT Time Adjuster
Set an exact activity start or shift the complete timestamp stream while preserving the recorded intervals between points.
What this tool does
- Set an exact new date and start time
- Shift by seconds, minutes, hours or days
- Keep relative record intervals intact
- Export a new FIT while retaining your original file
Non-destructive workflow
SmartFIT works on an in-memory copy and exports a new file. Keep the original activity as your backup, especially before structural edits.
Frequently asked questions
Does this overwrite my original file?
No. SmartFIT exports a new result and does not modify the source file on disk.
Can I inspect the result before saving?
Yes. The current activity can be reviewed in SmartFIT Editor and Analyzer before export.
More SmartFIT tools
FIT Tools Suite · FIT File Editor · FIT File Repair · Smart FIT Generator · Cycling Activity Generator · Running Activity Generator · Cycling Route Builder · GPX to FIT · FIT Converter · Activity Analyzer · Activity Library · Athlete Twin · Personal Heatmap