convert time/date

[manjh]

I want to use the lastupdate value to check if devices are updated for a set period.
What I get back from lastupdate is (for instance):

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2024-11-23 20:20:02

Is there a simple way (in LUA) to convert this into a a value that I can store, and compare in future values?

[FlyingDomotic]

If you're using "classical" LUA, then time elapsed since device's last update in seconds could be computed with:

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function lastSeen(device)
  timestamp = otherdevices_lastupdate[device] or device
  y, m, d, H, M, S = timestamp:match("(%d+)-(%d+)-(%d+) (%d+):(%d+):(%d+)")
  difference = os.difftime(os.time(), os.time{year=y, month=m, day=d, hour=H, min=M, sec=S})
  return difference
end

Called by "seconds = lastSeen("My device")" will load number of seconds since "My device" last update.

[manjh]

thanks for your help!