I have the following data and I need to calculate the difference between FINISHED and STARTED minus any weekends (any Saturdays and any Sundays) and also minus any holidays that might exist between the two dates. Obs Started Finished 1 Wednesday, August 28, 2013 Thursday, November 14, 2013 2 Tuesday, June 18, 2013 Monday, November 25, 2013 3 Tuesday, July 23, 2013 Friday, November 8, 2013 4 Wednesday, September 11, 2013 Friday, November 15, 2013 5 Wednesday, September 18, 2013 Thursday, December 5, 2013 6 Wednesday, July 24, 2013 Tuesday, December 3, 2013 7 Friday, October 4, 2013 Monday, November 11, 2013 8 Tuesday, August 27, 2013 Wednesday, November 27, 2013 9 Wednesday, October 2, 2013 Wednesday, November 6, 2013 10 Thursday, July 11, 2013 Monday, November 4, 2013 I know how to calculate the number of days difference between the two variables, but I don't know how to do this other additional step. For my purposes, the holidays which exist in the above time periods are only the following holidays: Thursday, July 04, 2013 Independence Day Monday, September 02, 2013 Labor Day Monday, October 14, 2013 Columbus Day Monday, November 11, 2013 Veterans' Day Thursday, November 28, 2013 Thanksgiving Wednesday, December 25, 2013 Christmas Day Tuesday, December 31, 2013 New Year's Eve
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