If you are into Salesforce one of the first things you need to consider is reports. With reports though you need to determine some following filters such as “THIS WEEK” and “NEXT WEEK”, A specific question needs to be answered: When does your week start? Is it Monday to Sunday, Sunday to Saturday or it something else? The solution to this is in your locale settings in your Org. Your locale settings in your Org determine the starting day of the week. For example, when the Locale is US English then the week starts from Sunday to Saturday, whereas with UK English, your week will start from Monday to Sunday. Click here to identify the first day of the week based on the locale.