Change default time period

Hello,

I would like to change the default period time in SugarCRM.

As you know, actually, if we create a Meeting or a Call, we will only be able to set dateTime like this : 9:00 / 9:15 / 9:30 / 9:45...

Is it possible to change that period to be able to set dateTime like this : 9:05 / 9:10 / 9:15 / 9:20 ... ?

Thank you for your help,
Regards