Hi there. I am really interested in the topic of "time". Being a layman in Physics, I don't really understand much about it. Though I work in the Aviation Industry and want to pursue my career there, I also wish to do a bachelor's degree in Physics if possible. And probably a master's too. I want to study and do a master's / bachelor's in Physics - "time" topic. I hope I was able to explain that, you know, time, second, C = 3 × 10^8 m/s and stuff. I would like to know which sub department of Physics deals with time? Is it the General Relativity or Special Relativity? Or another department? I would like to research on time, preferably time travel, eternity and stuff, though it looks much philosophical, but ya. I hope someone can give me an idea as to which department this topic belongs to. Thanks.