I'm curious why you would want this? If you're trying to save energy modern appliances use so little power on standby that the energy savings payback of buying an HS110 to monitor is measured in...

If your router supports it you might try enabling multicast. Unfortunately kasa/tplink is using multicast in a non-standard way - an invalid group ip or port IIRC - so not all routers will recognize...

It's easy to do this with TPLink and one of the various automation systems available Mine (AutomationManager for IoT) does this easily with a rule like: At Sunrise delay 15m (random) then turn light...

I don't believe the original post is legitimate, there's a spam link at the end. I did report it to you but nothing has been done of yet - in fact there's quite a number of unrelated/spam posts on...

If you want to do it from the switch and IFTTT won't work (or is too slow) my app can do that sort of thing if you run it as an automation server:...

There's an obfuscated local TCP API that can be used to control the bulbs. I think their app uses it but it's not published. A web search will track down the particulars.