#EPOCH TIME CALC SERIAL NUMBER#
#EPOCH TIME CALC SERIAL#
#EPOCH TIME CALC SOFTWARE#
#EPOCH TIME CALC ISO#

Enter the first date at the top of the column (say cell A2). Copy A3, and paste down the rest of the column.Ī column showing the 15th day of consecutive months Format the column to display dates as you prefer. Enter the first date at the top of the column (let's say that is cell A2). NETWORKDAYS can also take account of other non-working days.Ī column with dates a week apart Format the column to display dates as you prefer. Use NETWORKDAYS if you wish to know how many working days for example NETWORKDAYS(A2 A1) returns 11, the number of whole workdays (including both end days but excluding weekends). How many days between two dates DAYS('23Jan08' '9Jan08') returns 14, the number of days - however you can simply subtract one date from the other for example if cell A1 contains 23Jan08 and cell A2 contains 9Jan08, A1-A2 also returns 14. Simply add 14 days, and format the cell as a date to display it correctly. Īll major spreadsheets (including Calc) handle dates and times in a similar way, for historical reasons, but this can be a bit cumbersome.

#EPOCH TIME CALC ISO#

The descriptions of the Calc functions in these help pages use the international standard ISO date format for clarity, because this does not depend on locale for example, 23rd May 2009 is shown as.

#EPOCH TIME CALC SERIAL#

This is simply the date-time serial number, but if the cell is unformatted, Calc will display the date or time rather than a number format. Some of Calc's date and time functions return a 'date' or a 'time' ( for example TODAY() ).

In Tools - Options - General you may set the range of years for which Calc will recognise years given 2 digits.

If we only enter 2 digits of the year (for example 07 instead of 2007) Calc needs to know whether we mean 2007 or 1907. Calc recognises a wide range of possible date entries - for example 25-Dec-07, 25 December 2007, Dec 25 07, and 25/12/07 or 12/25/07 (these last two depend on the date system you use - whether days or months are written first). Therefore Calc tries to do this for us: if we enter 25Dec07, Calc recognises that this is a date, converts it to the date-time serial number, and sets the format to display as a date. It would be extremely inconvenient if, in order to enter a date in a cell, we had to work out the date-time serial number, enter it and then change the display format. Times are represented as a fraction of a day - for example 0.5 is half a day, or 12 hours, or 12 noon 0.25 is a quarter of a day, or 6 am.

#EPOCH TIME CALC SOFTWARE#

The default (normal) starting date is 30 December 1899 choose Tools - Options - Calc - Calculate to change this to 1 January 1904 for Apple software, or 1 January 1900 for old StarCalc 1.0 software if necessary.

#EPOCH TIME CALC SERIAL NUMBER#

The date-time serial number is simply the number of days that have passed since a set starting date. We may enter 39441 in a cell, and then (selecting Format - Cells.) choose a date format to display the number as a date.Īlthough a number representing a date / time is the same as any other number (except that we choose to display it as a date or time) it may be helpful to use the term 'date-time serial number'. For example the number 39441 may represent the date 25Dec07. In Calc, dates and times are represented by numbers. Returns the number of years including fraction between two dates. Returns the date of Easter Sunday in a given year. Returns the number of years between two dates. Returns the number of months between two dates. Returns the non-ISO week number of a given date. Returns the ISO week number of a given date. Returns the number of weeks in the year of the given date. Returns the number of weeks between two dates. Returns the number of days in the year of the given date. Returns the number of days in the month of the given date. Returns the number of days between two dates, using the 360 day year. Returns the number of days between two dates. Returns the number of workdays between two dates. Returns a date a given number of workdays away. Returns the date of the last day of a month. Returns a date-time serial number from a text time. Returns the time, given hours, minutes and seconds.

Returns a date-time serial number from a text date. Returns the date, given the year, month and day of the month. Returns the day of the week for a given date.

Epoch time calc