This makes Excel think it is dealing with a Long time field and format it accordingly. For Date to Timestamp; Select a blank cell; Type this formula = (A1-Date (1970,1,1)) *86400 into the blank cell and press ‘Enter’.
This will help you convert the date to a timestamp without much trouble. - which I have to do many times a day, on data that has a number of different datetime columns)AFAIK it is not possible to configure Excel's default date or time formats which are inherited from sytem settings (Regional/Language).

Since a day contains 86400 seconds (24 hours x 60 minutes x 60 seconds), conversion to Excel time can be done by dividing days by 86400 and adding the date value for January 1st, 1970. For example a recorded time contains milliseconds, such as 10:33:50.235. It get annoying manaully setting this every time I extract data from SQL ServerAccording to your request, you can format the cell with number format of "yyyy-m-d h:mm:ss.000"Although default date/time formats are inherited from regional settings Excel includes a standard set of alternative date & time formats which it may apply if assessed as more appropriate, one of those is that mm:ss.0. of attemting to get it right for most people most of the time.In addition to changing the numberformat as already suggested maybe define a custom style to suit with your numberformat.yes, everything I've found says Excel formats dates/times based on system Regional settings. workbook look at the list available in the Custom category of numberformats.
For me it shows in the cell as 31:00.0  and the format is set to Custom - mm:ss.0  which (for me) is really quite useless. When I type this time into a cell in Excel, the time shows as 33:50.2. workbook look at the list available in the Custom category of numberformats.

You can use the following formula instead: =RIGHT(TEXT(D2, "hh:mm:ss.000"),3)*1. Or you could make a Click for full-featured free trial in 30 days! You get a gold star. Comments will be moderated / approved to preserve the signal-to-noise ratio.All content on this website is Copyright 2003 - 2020 Chris Newland   At 2017-12-22 07:03:00, Andy left the following comment ...Thank you thank you thank you! Thank you for this information. Convert date to timestamp. Home: Articles: Java: Speaking: Raspberry Pi: Calculators: FIX Protocol: Published August 3rd, 2011 . Date in your timezone: Date in Los Angeles: Date in Berlin : Date in Beijing: Date in New York : *)Computation based on input date 08/16/2020 15:23:42 A Timestamp, Unix time, or POSIX time, is a system for describing points in time, defined as the number of seconds elapsed since midnight Coordinated Universal Time (UTC) of January 1, 1970, not counting leap seconds. I then need to calculate time differences which can be positive or negative. To fix the issue if you are using SQL Server 2008 or later you should convert the field However, there are no Regional Settings that use the mm:ss.0 format.As an aside, how does one define a custom style? I'd like to know if there's any way I can have Excel display 2013-01-21 01:31:00.000 in usable format.Try it. From a timestamp in milliseconds (ex: 1488380243994) use this formula: =A1/1000/86400+25569 with this formater: yyyy-mm-dd hh:mm:ss.000

It is properly interpreted as a date time, and the format can be set manually by formatting the cell... but is there any way to change the default from Yes, the following method will help you solve it easily.This method will walk you through creating a custom time format to show time with milliseconds in Excel.

Thank you

Show milliseconds only.