The answer depends on where you live.
It's probably a bigger deal than you think.
Shavuot goes by many names, but Pentecost is not usually one of them.
For a holiday that is only one or two days long, “weeks” seems a strange name.
The name of this holiday has more to do with when it falls than what it is about.
Rituals for the holiday of Shavuot, which celebrates the giving of the Torah.
What to look forward to in synagogue on Shavuot.
Everything you need to know to celebrate the holiday.