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Enter number of days to add or subtract (-) to the above date
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Select a month and a date. Enter a year.
Type the number of days in the box and then click "Click to Calculate"
If you want to add days to the selected date then just type the number.
If you want to subtract days from the selected date then type a minus sign or hyphen before the number.
If you want to subtract the number 2154 you may type "-2,154", you may type the comma. Type "-2,154".
If you want to type "256,678", but you type "25k,678", the computer will use "25678" to calculate the date.
If you type "ghblxz", the computer will print "undefined, undefined NaN, NaN " there will be no answer.
NaN = not a number
If you type "1.9e2", the computer will use "190" to calculate the answer.
If you select "February 31", the computer will print "Not a Day"
To clear the entry boxes click "Reset".
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Add or Subtract Number of Days to a Calendar Date Calculator Heavy Duty Version
Full Year Reference Calendar - Day of the Year and Days left till the End of the Year
Add or Subtract a Number of Weeks and/or Days to a Calendar Date Calculator
Add Number of Days, Months and/or Years to a Calendar Date Calculator
Year - Month - Day Counter How many years, months and days are there between two calendar dates
Day Counter How many days and/or weeks are there between two calendar dates
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