How do I get current timestamp in seconds?

问题

In Dyalog APL I can use the function ⎕TS to get the current year, month, day, hour, minute, second etc, but is there a way to get the current timestamp in seconds from e.g. 1970-01-01 (Unix timestamp)?

回答1:

Using days from https://dfns.dyalog.com/n_days.htm

      )copy dfns days
C:\Program Files\Dyalog\Dyalog APL-64 17.1 Unicode\ws\dfns.dws saved Wed Aug 21 19:40:24 2019
      86400×(days ⎕TS)-(days 1970 1 1)
1570618030

Could also use the over ⍥ operator, coming in Dyalog version 18.0

      )copy dfns days
C:\Program Files\Dyalog\Dyalog APL-64 17.1 Unicode\ws\dfns.dws saved Wed Aug 21 19:40:24 2019
      O←{(⍺⍺ ⍺)⍵⍵ ⍺⍺ ⍵} ⍝ The over operator
      86400×⎕TS days O - 1970 1 1
1570618337

来源：https://stackoverflow.com/questions/58300764/how-do-i-get-current-timestamp-in-seconds