Firstly, UTC is the official ISO abbreviation for "Universal Coordinated Time". The abbreviation is inconvenient in both English, and French, so its use was agereed upon.
If you want to see what a Leap Second looks like,
here's a link I got from
LeapSecond.Com.
So what do I intend to do for the 2016 Leap Second? I plan to stand on a chair, and at 6:59:58 EST (23:59:58 UTC), I will leap off the chair and hit the floor at 6:59:60 (23:59:60 UTC - it will take two seconds to hit the ground). I hope to be on the phone with Justice, my blind girl friend when I lived in New York City, and who I always call to celebrate New Years with at Midnight UTC.
So don't be surprised if you get a Busy signal when you call to wish me a Happy New Year.
I would think that growing up in the British Comonwealth as a subject of Her Majesty Elizabeth II, and attending Oxford (only 96 miles from the Greenwich Observatory) Rjesh would naturally assume that GMT would be Zulu Time of choice, while Sheldon would argue (vehemently, as usual) that UTC based on the preciseness of Atomic Clocks instead of mere astronomical observation, is the scientific time zone of choice. The Maritime community gave the world's Time Zones alpha designators in the 1920's and use the
ITU phonetics to discuss them. Zulu designates time at the Zero Meridian, as defined by the Greenwhich observatory, while my US Eastern Time Zone is designated Romeo, and Quebec in Summer during Daylight Savings Time).