你可以说 "We had a long meeting this morning that lasted until late at night." 或者 "We had an all-day meeting that went on until late in the evening."

这两句话的意思都是说今天上午开始的会议持续到晚上很晚。

来源：这些表达方式都是常见的表达会议持续时间的方式。

英文例句：

"We had a marathon meeting that started at 9 AM and didn't finish until 10 PM."
"The conference call went on for hours, from early in the morning until late at night."
"We had a full day of meetings that started in the morning and ended late in the evening."

中文翻译：

"我们开了一场长达整整一天的会议，从早上9点开始，直到晚上10点才结束。"
"这场电话会议持续了好几个小时，从早上开始，直到晚上很晚才结束。"
"我们开了一整天的会议，从早上开始，直到晚上晚些时候才结束。"