Yes, we support different time zones.

e.g: Imagine your Head office is in America and a Branch in India.

PK4 TimeTracker User Checks-In/Out for a Job on the PK4 TimeTracker app in India using Indian Standard Timezone. The Manager in America checks the reports or the time Details in America, he/she sees the Check-In/Out time converted to America's timezone and shown in Salesforce.

The TimeTracker users Checks-In/Out in Indian Timezone, but the time details shown in Salesforce are America TimeZone because the Salesforce org is set to American Timezone.