In French, 12 o’clock is expressed as « midi » when referring to noon. If you want to refer to midnight, you would say « minuit ».
Here’s a little more detail: the French language uses a 24-hour clock system in many contexts, especially in formal settings like train schedules or military time. However, in everyday conversation, people often use the 12-hour format.
So, if it’s 12 PM, you simply say « midi ». If it’s 12 AM, you would say « minuit ». Both terms are important to know in order to specify the time correctly!