Nowadays, most applications available in the market tend to have date and time associated data in it. If the application is not used just in a single location, then you likely have to deal with the date & time manipulation functionality in your application to synchronize everything according to the different timezone. But, managing date & time definitely adds some complexity in your system as you always have to remember too much calculation to properly adjust dates. So, these kinds of time zone conversion routines are a bit of a pain to use. Now, you might be wondering how you...