How to change the date/geotag of a picture/video
The date and time
Remark: When you change the date in Picasa 3, it is changed in the EXIF data of the photo. This is NOT the case when you change the date in Google Photos. As a result, the old date remains when you download the photos or look at them in Drive.
One by one in Google photos:
Go to photos.google.com
Click on the picture/video you want to change the date of
At the right-hand side at the top click on the "i" icon
In the pane at the right you can change the date
In bulk in Google Photos (new since May 24, 2016)
Select multiple photos
Click on "More options" (three-dots icon)
Select "Edit date & time"
In bulk before you upload using the Picasa 3 desktop application:
If you don't have the application installed yet, install it as explained here: Link
Select the picture(s)/movie(s) you want to change the date of
If you don't know how to select multiple pictures/movies, look here: How to select multiple pictures/movies
Go to "Tools"/"Adjust date and time..."
To change the geotag, activate the map by checking "View"/"Places"... then you can place the pin correctly on the map to add/chage a geotag
If you want to use the "File creation date" to populate the "EXIF date taken", you can use this (free) tool: http://www.relliksoftware.com/exifdatechanger/download
The geotag
Manual editing of the geotag isn't yet available in Google photos (at the time of writing). Google photos in some cases will add a location tag automatically though based on your location history, more info here. If you want to manually edit the geotag, you could try these options:
Workaround: change it in Google+ photos, the changes will be reflected in Google photos as well:
Click on the picture/video you want to change the geotag of
At the right-hand side at the top click on "Details"
In the pane at the right you can change the geotag
Change the geotag before you upload the pictures using the Picasa desktop application:
If you don't have the application installed yet, install it from picasa.google.com
To change the geotag, activate the map by checking "View"/"Places"... then you can place the pin correctly on the map to add/chage a geotag
If you think it is important this feature is added to Google Photos, let the "Google Photo" team know it using the "Feedback" option, explained here: Link
Shortened link to this page: https://goo.gl/GnDwVi