I made this because I wasn't happy with the existing solutions. I am Brian from roobasoft.com
I, Brian, of roobasoft.com, work with some people in Europe and was surprised to find that Google didn't support "2pm MDT in CET" (they support a lot of conversions, like 200g in 20mg).
No matter how many times I asked Google, it never knew.
So I made this. And then I realized why Google doesn't support the time conversions. It's not exactly accurate. Abbreviations and names of zones are not standard and some overlap. Instead of giving up I made it work how I needed it to work and put it out there for others who it may or may not work for.
Find a missing city or abbreviation, there are currently lots :( Or have a great feature idea, etc? Help make When Is That better by telling me about it. Just shoot me an email