batch file - Is there a way to get epoch time using a Windows command?

Question

Is there a way to get epoch time using a Windows command? If not, can the date and time commands output be modified?

For example date in Windows gives the date with / etc. I would like to get an output that has no special characters such as / :

Answer 1

Use this command to show numbers of seconds after epoch.

(Cmd command)

powershell -command "(New-TimeSpan -Start (Get-Date "01/01/1970") -End (Get-Date)).TotalSeconds"