Thunderbird - Thunderbird is a free email application that's easy to set up and customize - and it's loaded with great features!

Timer Tab - Online countdown timer, alarm clock, and stopwatch.

Microsoft Outlook - Organize your world. Outlook’s email and calendar tools help you communicate, stay on top of what matters, and get things done.

Online timer - Online timer is a free and easy-to-use tool that comes with a very simple way to get done with measuring time and alarm.

eM Client - eM Client is a fully-featured email client for Windows and macOS with a clean and easy-to-use interface. eM Client also offers features for calendars, tasks, contacts, notes, and chat.

Online Stopwatch - Online Stopwatch is free to use online tool that allows you to keep track of the important events and tasks that you are performing.