How to Fix the Wrong Date or Timestamp on a Photo

A camera clock that resets after a dead battery, or was never set correctly to begin with, leaves every photo from that shoot stamped with the wrong date — sometimes off by hours, sometimes by years. Since photo apps, cloud backups, and file browsers all sort by this timestamp, one bad clock can scramble an entire library's chronology.

Where the date actually lives

The timestamp you see in Photos, Lightroom, or your file browser usually comes from the Date Taken field in EXIF metadata — written once by the camera at capture, separate from the file system's own “date modified,” which changes every time the file is copied or backed up. Fixing the visible date means editing this EXIF field directly, not just the file property.

Spot-check before fixing a whole shoot

If the clock was simply unset, every photo in the shoot is usually off by the same fixed amount — check the very first photo against a known reference (a text you sent, a receipt) to work out exactly how far off the clock was, then apply that correction consistently rather than guessing per file.

What built-in tools can and can't do

Windows' file Properties panel and macOS Preview will show you the EXIF date but won't let you write a new one. Correcting it requires a metadata editor with a writable Date Taken field — and ideally one that also handles the Timezone field, since a photo can have the right local time but the wrong offset if you crossed timezones mid-trip.

The Exif Forge way

Correct Date Taken and Timezone directly

Exif Forge's CAPTURE group makes Date Taken and Timezone editable fields — fix one photo, or select the whole shoot and apply the same correction across every file at once.

Date Taken and Timezone editable right in the metadata panel

Multi-select a whole shoot and apply the same fix at once

RAW originals untouched — edits go to a companion .xmp sidecar

Atomic writes — every selected file updates, or none do

See Batch Editing

FAQ

Why is the date on my photos wrong in the first place?

The most common causes are a dead camera battery resetting the internal clock, a camera clock that was simply never set after a battery change, or photos crossing a timezone the camera didn't know about.

Will fixing the EXIF date change my file's "date modified" in Windows/Finder?

The file system's modified date and the EXIF Date Taken field are two separate things. Editing one doesn't require touching the other, though some tools update both — check before you rely on either for sorting.

Does correcting the date affect the photo itself?

No. Date and time are stored as metadata alongside the image, not in the pixel data, so correcting them has zero effect on image quality.