Momentary is an Android keyboard with one function: entering today’s date. I find myself entering today’s date multiple times a day when I’m using my phone. Under normal circumstances this is a pain to type. 2016-05-25, for example, is at least 10 clicks, and this is even worse if you’re relying on long presses.
Momentary to the rescue!
When you select Momentary as the input method, it enters today’s date and immediately returns to the previous input method. It takes just a moment.