Republican presidential candidates Donald Trump, Ted Cruz, Marco Rubio, John Kasich, Jeb Bush and Ben Carson are all vying for voters in the South Carolina Republican primary, while Democratic presidential candidates Hillary Clinton and Bernie Sanders battle it out in the Nevada caucus on Saturday.

These are the next big contests in the 2016 presidential election calendar.

Voters in South Carolina will head to the polls as Nevada residents caucus in their respective primaries in the coming week and a half. The outcomes could further winnow the 2016 presidential candidate field -- especially in the crowded GOP fight for the White House.

Unlike the Iowa and New Hampshire primaries, Democratic and Republican voters will vote or caucus on different days.

Here's what you need to know for the South Carolina primary and Nevada caucus:

When is the South Carolina primary?

Republican voters head to the polls on Saturday, Feb. 20. Democratic voters head to the polls a week later, on Feb. 27.

When is the Nevada caucus?

Nevada Democrats will caucus on Saturday Feb. 20. Democrats will take part in the "First in the West" caucuses.

Meanwhile, Republicans head to their caucuses on Feb. 23, Tuesday.

What time do the caucuses/polls close?

In South Carolina, polls are open for both parties between 7 a.m. and 7 p.m.

In Nevada, Republicans will caucus between 5 and 9 p.m. PST.

What's at stake?

The Nevada Democratic Party offers 43 delegates to the national convention. The Nevada GOP offers 30 delegates.

In South Carolina, 50 delegates are at stake in the Republican primary and 59 in the Democratic primary.

Who's left in the presidential race?

In the Democratic field, former Secretary of StateClinton and Vermont Sen. Sanders are competing for the nomination.

The remaining Republicans are: Businessman Donald Trump, Texas Sen. Ted Cruz, Florida Sen. Marco Rubio, Ohio Gov. John Kasich, former Florida Gov. Jeb Bush and retired neurosurgeon Ben Carson.

Matt Arco may be reached at marco@njadvancemedia.com. Follow him on Twitter @MatthewArco or on Facebook. Follow NJ.com Politics on Facebook.