Question :

How fast does the element changes its every minute, second, micro second, nano second?

Answer:

Elements change the Prakriti. Here are the timings for the Dosha changes. We will talk about this in Ashtavakra 20.
Doshas in the daily cycle
Kapha time: 6 a.m. – 10 a.m. / 6 p.m. – 10 p.m.
Pitta time: 10 a.m. – 2 p.m. / 10 p.m. – 2 a.m.
Vata time: 2 p.m. – 6 p.m. / 2 a.m. – 6 a.m.
Doshas in the seasons (weather dependent)
Kapha: cold, damp, rainy (spring)
Pitta: hot (summer)
Vata: very cold, cold and windy, cold and dry, fast and frequent changes in weather (autumn/winter)