Unfortunately, not all cameras support the FITS format. This format is design specifically for astronomical purposes and as one would expect it records the date and time (either local and/or UTC) though has much more powerful capabilities (plate solve info, center image coordinates, camera used etc etc). If you have the capabilities of capturing images in FITS format, I'd recommend you do so.
All this information is placed in the image header, so does not compromise the visual image.
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