Rinse: wash off the dust, not the grain
Milled rice carries loose starch and bran dust. That dust turns cooked rice gummy and a little smelly. Three or four quick rinses remove most of it. The water only needs to look mostly clear.
Pour off the first water fast
Dry rice drinks the first water it touches. That water is full of bran smell. Swirl once and pour it off within 10 seconds.
Soak: send water to the center
Raw rice is hard and dry at the core. Soaking lets water creep inward before any heat arrives. Most of it gets in within 30 minutes. In cold weather, give it 1 hour.
What happens if you skip the soak
Starch softens above about 60C, but only where water reaches. The outside turns soft first. The core stays hard and white. You get rice that is mushy outside and chalky inside.
Soaked grains turn from clear to milky white. I look at the color instead of the clock.