I just use Google Calendar for time planning. Setting up color coded calendars can make things so much more manageable. It's almost too easy to micro-manage my time now haha.

Harvest is fantastic for invoicing and actual time tracking (as opposed to planning). I tend to lay out a schedule in advance with my calendar, then loosely follow through while tracking my time to see where it deviates.

Todoist has been my to-do list app of choice for a long while. It's multiplatform support is some of the best out there... Though I'm considering making a switch to any.do once I have time to give it a proper trial run.

floatschedule.com for team time management. (I'm a co-founder so I'm bias)