It is go time vs Let's begin vs Let's go

When to use each in English, with meaning, register, and examples.

It is go time

InformalTop 2,000 (common)

Let's begin

Top 2,000 (common)

Let's go

Top 1,000 (very common)
Most common: Let's go
 It is go timeLet's beginLet's go
Pronunciation🇬🇧 //ɪt ɪz ɡoʊ taɪm//🇺🇸 //ɪt ɪz ɡoʊ taɪm//🇬🇧 //lɛts bɪˈɡɪn//🇺🇸 //lɛts bɪˈɡɪn//🇬🇧 //lɛts ɡəʊ//🇺🇸 //lɛts ɡoʊ//
MeaningIt's time to start doing something important.Start somethingA way to suggest leaving or starting an activity together.
ExampleAfter months of planning, it's finally go time for the big project.Let's begin the meeting with a brief introduction.Let's go to the park this afternoon.
RegisterInformalNeutralNeutral
How commonTop 2,000 (common)Top 2,000 (common)Top 1,000 (very common)
Collocationsgo time for action, it's go time now, make it go time, is it go timeLet's begin the discussion, Let's begin the journey, Let's begin the projectlet's go out, let's go home, let's go eat
Common mistakesUsing it in formal conversations., Confusing with 'it's time to go' which has a different meaning., Not using it in appropriate contexts; it should indicate readiness.Using 'lets' instead of 'let's' for contraction, Overusing in casual settings where a simple 'let's go' may suffice, Not pairing with a specific activity, making it vagueUsing 'lets' instead of 'let's' as a contraction for 'let us', Confusing the meaning with 'let go', Not using it with a verb following, e.g., 'let's walk'
Usage notesUsed when it's the right moment to take action, often in a motivating or enthusiastic context. Avoid in formal situations.Used to initiate an activity or meeting, appropriate in both formal and informal contexts.Commonly used for invitations or suggestions. Suitable in casual conversations among friends, but less formal in business settings.

See it in real clips

It is go time
Let's begin
Let's go

Frequently asked questions: It is go time vs Let's begin vs Let's go

What's the difference between It is go time, Let's begin, and Let's go?

It is go time: It's time to start doing something important. Let's begin: Start something Let's go: A way to suggest leaving or starting an activity together.

Which is more common: It is go time, Let's begin, and Let's go?

Let's go is the most common in everyday English.

Can you show an example of each?

It is go time: After months of planning, it's finally go time for the big project. Let's begin: Let's begin the meeting with a brief introduction. Let's go: Let's go to the park this afternoon.

Can I use It is go time, Let's begin, and Let's go interchangeably?

Not always. It is go time, Let's begin, and Let's go are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.