How to override user's locale for toStartOfWeek() method, so that system should always return Sunday date as week start date?

Question

Date currentDate = System.today();
System.debug('Start of week = '+currentDate.toStartOfWeek()); 

For English (United States) locale System.debug will display Sunday date as Start of week. And for English (United Kingdom) locale System.debug will display Monday date as start of week.

Irrespective of user's locale, Always I need to get Sunday date as week start date. Is it possible?

Answer 1

One way of doing it is below:

Documentation of date time class

Datetime currentDatetime = System.now();
date gmtdate = currentDatetime.dateGMT();
System.debug('gmtStart of week = '+gmtdate.toStartOfWeek());