Wishful thinking...
I've been freelancing for at least a decade and have accumulated several site specific email addresses/calendars that I currently monitor via Outlook Web Access.
In a perfect world I'd be able to keep track of how I'm spending my time as well as scheduling events and... sync with my other, site specific calendars.
I have searched a few times for a simple personal calendar but...not found anything for centralizing calendars.
So... I just keep doing things manually, Excel for tracking activity times and a separate Google calendar for pending events.
And I know a few people who still swear by their old day planners.
Hmmm... this article reminds me of another "red headed stepchild"... reporting software.
e.g. PowerBI, Report Builder, Crystal, etc... don't we all just love to hate these?
Biting the hand that feeds IT
