To change from the 24hour clock to the 12hour clock, subtract 12 hours from any time past 12, the time remains unchanged if it's before 12 Remember to add "am" with the 12hour format to show time before noon and "pm" to denote post noon To convert from the 12hour to the 24hour format, add 12 to the number of hours passed forIe in a web browser16/3/18 Some situations will call for you to use a 12hour clock, where you identify the time with an AM or PM modifier, while others will adopt a 24hour clock format where the AM and PM aren't necessary Your Google Calendar may currently be in the 12hour format, but this is a setting that you can change in the application
How To Change Your Android Clock To 24 Hour Time Android Central
