Although 45 percent of employers are set to close their offices on both Christmas day and Christmas Eve, few employers plan to recognize religious holidays by closing their offices in 2013, according to the 2013 Holiday Schedules Survey Findings conducted by the Society for Human Resource Management during its Diversity and Inclusion Conference and Exposition.

In fact, among office closings for other religious holidays are Good Friday at 21 percent, the first day of Rosh Hashanah at 1 percent, the beginning of Passover at 1 percent and the end of Passover at 1 percent.

"Instead of structuring their holiday calendar around specific religious holidays, many companies encourage their employees to observe days of religious or other special significance through paid time off, vacation, personal leave or floating holidays," says Shawn Fegley, survey research analyst at SHRM.