EXIF tag · ExifIFD

SubSecTimeOriginal

(fractional seconds for DateTimeOriginal)

0x9291
Tag ID (37521 decimal)
ExifIFD
IFD / group
string
Data type
EXIF
Table

What SubSecTimeOriginal means#

(fractional seconds for DateTimeOriginal)

Read, write and remove it#

# read
exiftool -SubSecTimeOriginal photo.jpg
# write
exiftool -SubSecTimeOriginal="…" photo.jpg
# remove
exiftool -SubSecTimeOriginal= photo.jpg
# all files in a folder, as CSV
exiftool -csv -SubSecTimeOriginal -r ./photos > sub-sec-time-original.csv

In Python with Pillow:

from PIL import Image
exif = Image.open("photo.jpg").getexif()
value = exif.get_ifd(0x8769).get(0x9291)  # SubSecTimeOriginal
print(value)

Frequently asked questions#

What is the EXIF tag ID of SubSecTimeOriginal?

0x9291 (37521 decimal), in the ExifIFD directory.

How do I see SubSecTimeOriginal in a photo?

Run exiftool -SubSecTimeOriginal photo.jpg, or open the file's info panel in Lightroom, Photoshop, Windows (Properties → Details) or macOS Preview (Tools → Show Inspector).

Last updated October 03, 2026 · How we calculate · Sources