问题
I'm trying to determine from a .csv file output (below) if the date/time meets our criteria for peak or off-peak. Peak/off-peak is determined by the day of the week and time. I'm trying to build a formula in excel that lets me know if each date/time is peak or off-peak. I have been using the text to column feature to put the data into two cells then use the TEXT function to determine day of the week in a new cell, then filter feature to input peak/off-peak. This is very manual and inefficient. Thanks in advance.
Peak equals:
- mon, tue, wed thurs, fri and hour 6:00-21:00
Off-peak equals:
- sat, sun and hour 0:00-23:00
- mon, tue, wed thurs, fri and hour 0:00-5:00 and 22:00-23:00
File output:
8/15/2017 0:00
8/15/2017 1:00
8/15/2017 2:00
8/15/2017 3:00
Seeking Outcome:
Date/Time peak/off-peak
8/15/2017 0:00 off-peak
8/15/2017 1:00 off-peak
8/15/2017 2:00 off-peak
8/15/2017 3:00 off-peak
8/15/2017 4:00 off-peak
8/15/2017 5:00 off-peak
8/15/2017 6:00 peak
8/15/2017 7:00 peak
8/15/2017 8:00 peak
8/15/2017 9:00 peak
8/15/2017 10:00 peak
8/15/2017 11:00 peak
8/15/2017 12:00 peak
8/15/2017 13:00 peak
8/15/2017 14:00 peak
8/15/2017 15:00 peak
8/15/2017 16:00 peak
8/15/2017 17:00 peak
8/15/2017 18:00 peak
8/15/2017 19:00 peak
8/15/2017 20:00 peak
8/15/2017 21:00 peak
8/15/2017 22:00 off-peak
8/15/2017 23:00 off-peak
回答1:
You can write the following formula in the B1 cell, where A1 is the cell containing the Date/Time:
=IF(AND(WEEKDAY(A1,2)<=5,WEEKDAY(A1,2)>=1,A1-INT(A1)>=0.25,A1-INT(A1)<=0.875),"peak","off-peak")
The part WEEKDAY(A1,2)<=5,WEEKDAY(A1,2)>=1 checks if the day is between Mon and Fri and the part A1-INT(A1)>=0.25,A1-INT(A1)<=0.875 checks if the hour is between 06:00 and 21:00. If every conditions are TRUE, the formula shows "peak" otherwise it shows "off-peak".
来源：https://stackoverflow.com/questions/46346612/excel-day-date-time-to-determine-peak-offpeak