If you have already saved appointments to your basic phone calendar (Google calendar,Outlook,iCloud,), you can copy them all over to TimeTree easily.
Note1:This will only be a one-way sync .Changes you/members make in TimeTree to the copied events won’t update the OS calendar.
Note2:To keep the copied calendar up-to-date, copy again in TimeTree.
1) As the app needs your permission to read OS calendar,a pop-up requesting permission may appear. Please allow to use this function. (When a pop-up does not appear, Go to settings on your phone and Tap (Contacts)>Accounts>make sure the accounts such as Gmail and iCloud are added )
2)Open an app and Tap the More tab > Settings icon on the upper right corner.
Scroll down to Other and click on "Copy events from the OS calendar".
Select all the calendars you wish to copy from,then click "OK"
3)To change the default green color,Tap hold green circle dot and choose the color.
If you have successfully imported events, this confirmation message will be displayed.
*Sometimes it can take a while for the calendar to be updated, especially if you have many appointments. Please wait a while. If it still does not update, restarting the app usually does the trick. (Like with many electronic things.)
keyword: import/sync/google calendar/outlook/icloud