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Excel expects dates and times to be stored as a floating point number whose value depends on the Date1904 setting of the workbook, plus a number format such as "mm/dd/yyyy" or "hh:mm:ss" or "mm/dd/yyyy hh:mm:ss" so that the number is displayed to the user as a date / time.
Excel sees a number like 1547 as approximately 4 years on from 1st January 1900 if you format it as a date, so it will come out as something like 26/3/1904 in UK format or 3/26/1904 in US-style format. Note that the time function can only give you values up to 23:59:59 (stored as 0.999988426), but the second method will give you a datetime ...
I have a device which outputs the time in the format hh:mm:ss.000, e.g., 00:04:58.727 and I need to convert these to milliseconds. I can't change the way the device outputs the times so I have to do it in Excel, but I don't know VB so am looking for a cell-by-cell solution.
Entering time inside the formula presents problems due to the formatting as the colon will make the formula think you want to do something else and quotes will change the format to text. Here's a formula that works: D1=IF(AND(C1>A1,C1<B1),3,0) where A1 is your start time, B1 is your end time, C1 is whatever time you are testing.
Excel shows it in this format: dd/mm/yyyy hh:mm. e.g. 2020-05-22 16:40:55 shows as 22/05/2020 16:40. This is evidently determined by the Short date and Short time format selected in Windows; for example, if I change the Short date format in Windows to yyyy-mm-dd, Excel shows 2020-05-22 16:40.
You can easily do this with the normal "Time" data type - just change the format! Excels time/date format is simply 1.0 equals 1 full day (starting on 1/1/1900). So 36 hours would be 1.5. If you change the format to [h]:mm, you'll see 36:00. Therefore, if you want to work with durations, you can simply use subtraction, e.g.
Using the formula shown above will return a serial number. To display the serial number in the appropriate format, choose Number from the Format menu (or, on the Format menu, click Cells, and then select the Number tab) and select hh:mm:ss. To convert hours and minutes from a decimal number to the hh:mm:ss format use the following formula:
[@ISO] is the cell (within a table) containing the date/time in local time in ISO8601 format. Both will generate new date/time type value. Feel free to adjust functions accordingly to your needs (specific date/time format).
Easy. To change a time value like: 1:00:15 to text, you can use the 'TEXT' function. Example, if your time value (1:00:15) is contained in cell 'A1', you can convert it into a text by doing: Text(A1, "h:mm:ss"). The result still looks the same: 1:00:15. But notice that this time round, it has become a text value.
I have a column showing dates "27/01/2015 18:43:00" I changed them to show as Number "42031.78" I then used Data/Text to columns and used the period or full stop as the delimiter.