When placing a booking, where we choose the dates of the booking, the "to" between the two dates is not translatable. To get there: 1. In a detailed record, click on the Items tab on the left 2. Where it says Bookable, choose Yes and click Update 3. Click Place booking 4. Find and select a patron to enable the other fields 5. Under Booking dates, choose two dates --> Dates are displayed as date1 to date2 6. Translate the interface gulp po:update --lang fr-CA ./misc/translator/translate update fr-CA 7. In the system preference StaffInterfaceLanguage, select the other language and click Save all I18N/L10N preferences 8. Change the interface in the other language 9. Redo steps 3 to 5 --> Dates are still displayed as date1 to date2 I searched the various po files, but I didn't take the time to check all occurrences of "to", obviously. I mostly searched for "%s to %s" and modals/place_booking.inc.