BSFN to convert time between time zones?

I have a need to convert the time between time zones - From say Pacific time to Central time.

E.g.:
If I have a time value of 174500 which is 5:45 pm in PST, it needs to be converted to other time zones. So, it should be returning:
8:45 pm (204500) for EST,
7:45 pm (194500) for CST,
6:45 pm (184500) for MST,
2:45 pm (144500) for HST,
etc.

We also need to consider the Standard time vs Daylight time.

I am guessing there should be a BSFN available to help with this. I came across B9800009 -...

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