Formatting Date(YY:MM:DD:Time) in Excel

Question

I have an excel file, with a date column, but I want to convert the date column to

YY/MM/DD/Time

Ive been searching for 2 hours and no result y

Answer 1

Your going to have to parse the date into four columns using fixed parsing. Then reassemble the columns any way you want. Just Google with excel parse columns fixed.

Answer 2

You could use this method and split the date and time into separate cells:

=DATE((LEFT(A1,4)),(MID(A1,5,2)),MID(A1,7,2))

=TIME(MID(A1,10,2),(MID(A1,12,2)),0)

Once your date value is in a format Excel can recognize, you can then change the formatting to whatever you'd like.

Or if you don't care to have the value in a recognizable date format, you can just get your desired formatting like this (will give you a string that looks like this: YY/MM/DD/Time):

=MID(A1,3,2)&"/"&MID(A1,5,2)&"/"&MID(A1,7,2)&"/"&MID(A1,10,4)

Answer 3

ISO 8601 format would be YYYY-MM-DD H24:MI:SS.

But you can set Postgres to accept various date styles by setting the datestyle setting. You can do that globally in postgresql.conf or temporarily for your session.

SET datestyle = SQL, DMY

For more exotic formats, you can create a temporary staging table, COPY to it and INSERT into your target table from there. Among others, you can use to_timestamp():

SELECT to_timestamp('13/10/14/17:33', 'YY/MM/DD/hh24:mi')

More info and example code in related answers like these:
Replacing whitespace with sed in a CSV (to use w/ postgres copy command)
How to bulk insert only new rows in PostreSQL