The royal wedding is today -- this map of the venue tells you where and when all the big moments will happen

Samantha Lee/Business Insider

Prince Harry and Meghan Markle will marry on Saturday, at a wedding ceremony that will be the biggest British royal event for years.

It will center on Windsor Castle in southern England, one of the Queen’s oldest and best-known residences.

The order of the day will take Harry and Meghan through several different grand locations in the castle grounds, as well as through the town itself in a horse-drawn carriage.

The above graphic breaks down where they will be and who they will be with at the pivotal moments of the day. Palace officials also released a super-detailed order of service on midnight before the wedding, which you can read here.

Here’s a more detailed order for how things will go down:

The royal wedding schedule gmt edtSamantha Lee/Business Insider

And here is how to watch the wedding online, and exactly what time it starts where you are.

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