1. First download this Application Boomerang.
This Application is available for different browsers(Google Chrome, Mozilla Forefox,Safari etc).
2. Download this Application and install it for your respective browser.
The application will welcome you when you restart your browser and open gmail account.
You can take a tour or simply click on SKIP
3. Now log in to your Gmail and go to Compose Mail.
You will find an option like this.
4. Now Click the button Send Later and there you can Schedule Time at what time you want to send mail.Then click confirm.
5. If you want to reschedule or make any changes the you can go to Boomerang and go to Manage Scheduled Mails.
6. Your are done…Enjoyyy.
Do share the post if you like it.