What year is it now? If you happen to be in Thailand, the answer might not be the one you expect.
Thailand uses its own Thai Solar Calendar, based in the Buddhist Era, which equals roughly to 500 years in the future when comparing to the Western calendar. This simple tool allows you to convert between the two of them easily, and provides a simple table for easy reference.
This is just a first version, so more details and depth will be build later :-)