                 expect(TimeUnit.endOfHour(randomTimeIn5PM)).to(equal(endOf5PM))
             }
             
+// MARK: End of day
             it ("can calculate the end of a day for date at the end of the day") {
                 let endOfSeptember8_2015 = dateFormatter.dateFromString("2015-09-08 23:59:59")!
                 expect(TimeUnit().endOfDay(endOfSeptember8_2015)).to(equal(endOfSeptember8_2015))

                expect(TimeUnit.hoursOfDay(dateInSeptember5_2015)).to(equal(hoursInSeptember5_2015))
            }
            
            
// MARK: daysOfMonth
            it ("can create days of February 2015") {

                expect(TimeUnit()).toNot(beNil())
            }
        }

// MARK: - Beginning of Time Units
        describe("Calculating beginning of time units") {
            var dateFormatter : NSDateFormatter!
            beforeEach {
