I am planning to visit Thailand and Malaysia in November 2017.
I'm from India, and have a passport.
I know Thailand provides visas on arrival but Malaysia doesn't. So I am planning to get visa for both Thailand and Malaysia before travelling.
Details of trip: I am planning to reach Bangkok, from there Pattaya, then from there a long journey to Phuket.
From Phuket, I plan to leave Thailand by road, across the Malaysian border, so I would need to have my Malaysian visum there.
The trip is from the 2nd week till the end of November.
Can the visa for the two different countries overlap? E.g. can I have 2 visas for same duration, so that I would be free to visit anytime from Thailand, instead of being stuck for a specific date.