1.Is it snowing in Korea now?
Is it~ : ~ 인가요?(in ga yo?)
Snow means : 눈 (nun)
In korea : 한국에 (han guk e)
Now : 지금 (ji gum)
However, In Korea, we use idiom like," does snow coming(coming is 오나요 : O-na-yo)?" instead of "is it snowing?"
So, "Is it snowing in Korea now" is "지금(now) 한국에(in Korea) 눈이 오나요(does snow come?)?"
You can pronounce it "JiGum HanGukE Nun-i Ohnayo?"
2. What time is it in Korea now?
What : 몇(meot)
time : 시(shi)
so, "What time is it in Korea now?" can be translated "한국은(in Korea) 지금(now) 몇(what) 시(time)에요(be verbs)?" (Han-Guk-Un Ji-Gum Meot-Shi e-yo?)