20 Function settings
6. “Number of periods”:
Specify the number of periods being added to or subtracted from the current date and
time. You can input a negative value to set a date and time in the past.
Example: If you set “45 days”, and today is January 1st, the date “February 15th” will be
marked.
Setting range: “-999” to “999”
7. “ Period unit”:
Specify the unit of the period being added to or subtracted from the current date and
time.
Setting range: “Year”, “Month”, “Day”, “Hour”, “Minute”
If “Year” or “Month” is set and the calculated expiry day does not exist, the day will be
adjusted as shown in the following table.
Calculated day
Adjusted day
Remarks
January 0th
December 31st of the last year
X “month” 0th
The last day of (X-1) “month”.
X = 2 to 12
X “month” 31th
The last day of (X-1) “month”.
X = 4, 6, 9, 11
February 29th to 31st
The last day of February.
8. “Today included”:
Specify whether the current day is being included in the base date for addition or
subtraction.
You can make this setting if “Year” or “Month” is set for “ Period unit”.
If “Today included” is not selected, the result of the calculated expiry day is the same
day of the year or the month. If “Today included” is enabled, the result of the calculated
expiry day is the previous day (or the next day for negative values).
Example: If you set “+1 month”, the days in the following table will be marked.
Calculated expiry day
Today
Today not included
Today included
January 1st
February 1st
January 31st
January 29th
February 28th
1)
February 28th
January 30th
February 28th
1)
February 28th
1)
January 31st
February 28th
1)
February 28th
1)
February 1st
March 1st
February 28th
1)
February 28th
March 28th
March 27th
March 1st
April 1st
March 31st
March 31st
April 30th
April 30th
April 1st
May 1st
April 30th
April 30th
May 30th
May 29th
May 1st
June 1st
May 31st
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