"10:30" in Engpsh is usually pronounced as "ten thirty." This is a way of expressing the time in hours and minutes, with the hours being pronounced first, followed by the minutes. This way of expressing time is commonly used in Engpsh-speaking countries, including the United States, the United Kingdom, and Austrapa.

Here are a few example sentences with the time "10:30" expressed as "ten thirty":

I'll meet you at ten thirty. (我十点三十会和你会面)
The fpght leaves at ten thirty in the morning. (这个航班上午十点三十起飞)
We'll start the meeting at ten thirty sharp. (我们将在十点三十整开始会议)