If you are looking to add a custom or manual date and time to a captured memory, there are a few options you can try depending on the type of memory you are dealing with:
Digital photos: If you want to add a custom date and time to a digital photo, most photo editing software will allow you to do so. For example, in Adobe Photoshop, you can use the "File Info" dialog box to add a custom date and time under the "Description" tab. Many other photo editing software options also provide this functionality.
Written notes: If you have written notes or a physical journal entry that you want to add a custom date and time to, you can simply write the date and time at the top of the page or entry.
Video recordings: Similar to digital photos, most video editing software will allow you to add a custom date and time to a video. For example, in Adobe Premiere Pro, you can use the "Metadata" panel to add a custom date and time under the "Basic" tab.
Audio recordings: If you have an audio recording that you want to add a custom date and time to, most audio editing software will allow you to do so. For example, in Audacity, you can use the "Metadata Editor" to add a custom date and time under the "Metadata" tab.
In general, adding a custom date and time to a captured memory may involve editing the metadata of the file or manually adding the information to the memory itself. You should consult the documentation for the software or device you are using for more specific instructions.