Super Compact Timer!

A super compact timer, using summon item.

I haven't seen this exact use anywhere else, although there are lots of more cunning uses out there for clocks and the like.


Explanation:

This example spawns the item one block above the command block, with 10 seconds remaining before it disappears:

summon Item ~ ~1 ~ {Item:{id:1},Age:5800}

The timings work like this:

*Items disappear after 6000 ticks (5 minutes)
*Minus the delay time you want from the 6000 ticks IE:
     600 ticks = 30 seconds
     So an item that is 5400 ticks old will disappear in 30 secs time