No, you cannot edit the location or date/time of a post once it has been submitted.

When you upload a photo from your device, the date, time, and location metadata already embedded in the photo will be automatically applied. Since these details cannot be modified within the Biome app, please verify the information before you post.

(Note: If a photo does not contain any date or location metadata, you can manually add this information on the posting screen during the initial upload.)