iPhone calendar entries not synced with MacBook calendar
I use my iPhone 4S calendar as my primary calendar for entering or modifying events for the simple reason that it's with me most, if not all the time.
But after upgrading my MacBook Air to Mountain Lion last week, calendar entries entered or modified on my iPhone no longer synchronize with the calendar on my MacBook Air. As such, I have to manually make the entries or modifications on my MacBook Air so that the calendar will be updated when I synchronize it with my iPad. Am not using iCloud, so the calendar on my MacBook is a local calendar (On My Mac).
Any thoughts on why this is happening and what can I do to fix this?
MacBook Air, OS X Mountain Lion