8:15 in English can be said as "eight fifteen" or "eight oh fifteen." This comes from the way hours and minutes are typically expressed in English. When telling time, the hours are usually said first, followed by the minutes. For example, "eight fifteen" would mean "eight hours and fifteen minutes," and "eight oh fifteen" would mean "eight hours and zero minutes, or 8:00."

Here are some examples of how to use "eight fifteen" and "eight oh fifteen" in sentences:

"I'll meet you at eight fifteen outside the restaurant." (我会在饭店外面8点15分与你见面。)

"Please be ready to leave at eight oh fifteen sharp." (请准备好在8点15分准时出发。)

"Our flight departs at eight fifteen, so we need to be at the airport by seven thirty." (我们的航班在8点15分起飞，所以我们需要在7点半到达机场。)

It's also worth noting that in some situations, it might be more common to use the 24-hour clock format to express time in English. In this format, 8:15 would be written as "08:15" or simply "815." For example:

"The train leaves at 0815 hours." (火车将于0815时出发。)

"The meeting is scheduled for 815." (会议定于815举行。)

"Can you call me back at 8:15 PM?" (您能在晚上8点15分给我打电话吗？)