You can change the date & time format in Google Sheets & Excel Online using this guide. Use different date & time formats in spreadsheets.

How to Change to Accounting Format in Excel. The accounting format in Microsoft Excel 2010 is very similar to the currency format---both display the currency symbol next to every number.

How to Convert 5-Digit Julian Dates to Regular Dates in Excel. The Julian date format is a five digit number broken into two parts: a two-digit representation of the year followed by a three-digit ...