Scott’s post definitely got me on the right track, but it was missing holidays. Salesforce also supports holiday configuration – you can read about that here. To allow for easy management in the future, I decided to include this configuration in my solution. Ultimately, I needed to check any business day and find out if it was a holiday, and if it wasn’t, then retrieve the business hours.

I ended up creating a BusinessHoursMath class that served my need and also has plenty of room for future functionality expansion. Here is a situation in which this class can really come in clutch – given a Date, I want to get a new DateTime returned for the end of the day 1 business day after the Date that was provided. If it’s a Monday, I would get Tuesday at 5 p.m. If I wanted 5 business days after Monday, I would get back 5 p.m. the following Monday, and so on. But what if there is a holiday on Thursday of that week that my organization has off? As long as that holiday is configured in Salesforce, my class will treat Thursday as a non business day and would then return 5 p.m. Tuesday.

To use, simply setup business hours and holidays in Salesforce and make a call to the class like so:

In the example above, the expireDateTime variable is set to the end of the business day 2 days from today’s date. ENJOY! The BusinessHoursMath class is hosted on GitHub.