Your files stay on your device

# Photo Time-Zone estimator

Reads a photo's EXIF capture time, offset tag, and GPS timestamp together to expose camera clock error and the UTC offset the shot was really taken at.

Drop photos to check

JPG, HEIC, HEIF, TIFF, DNG, NEF, CR2, ARW · Up to 300 files, 40 MB each · stays on your device

Photos with a capture time and a GPS stamp get a real measurement; the rest are listed with what they were missing.
Choose photosor paste

The result is an offset, not a zone: no IANA database is consulted, and a zone name would be a guess. Without a GPS timestamp nothing can be measured, because a camera clock alone carries no timezone. A corrected time when the offset tag is missing assumes the camera clock itself was right, which is the best the two remaining clocks can support. The solar offset from longitude is an indication only; real solar time also depends on the date and the equation of time.
Options

## More PDF & file tools

- [Photo location and metadata](/files/exif)
- [Photo GPS map](/files/batch-photo-gps-map)
- [Time zone converter](/time/timezone-converter)
[All PDF & file tools](/files)

Was this tool useful?
YesNo

---

Canonical HTML: https://nutter.tools/files/photo-timezone-estimator
Markdown version: https://nutter.tools/files/photo-timezone-estimator.md
Plain-text version: https://nutter.tools/files/photo-timezone-estimator.txt
Agent index: https://nutter.tools/llms.txt