RescueTime - Time management software that shows you how you spend your time & provides tools to help you be more productive.
Cron - Cron Calendar.
tinyTimeSheet - A basic time sheet for Mac.
Vimcal - Vimcal is the world’s fastest calendar, beautifully designed for people who work remotely and live in their calendars.
Timesheets by Veryfi - Jobsite intelligence in your pocket
KosmoTime - The to do list with super powers