Because an egg timer can't measure an interval of less than three minutes

Several weeks ago I lamented that a 24-hour clock is no longer adequate to mark the time between mass shootings in America; we needed to start using an egg timer.

Two shootings today (so far - it's not even dark on the west coast yet), and I'm beginning to think that even an egg timer is too crude an instrument.

We're going to need a stopwatch.

At this rate, we'll soon have to use a cesium microwave atomic clock.