GMT market opening times?

My brokers mt4 gmt offset is 0.

So, what are the Frankfort open, London open & U.S. opens & closings according to that?

I want to mark them in my platform.

Haven't really checked the Similar Threads but I'm sure it's discussed in there. And then compare with ForexFactory's market sessions applet.

No that doesn't help at all, Im not looking for something to show me how much time is left in a session.

My offset is 00 for my broker for GMT time. I'm looking to mark the openings and closings according to that offset on my chart.

1. Look at applet, note time left to end session, and time that has to elapse to begining of the session.
2. Open your broker chart.
3. Add times noted in point 1. to current time on broker charts.
You don't have to worry at all about broker's timezone when doing it this way.

If you can't figure it out yourself... Well... Good luck in trading.