"Two points forty" in Engpsh can be said in two ways:

"Two forty" - This is a colloquial way of saying "two forty" which is short for "two forty o'clock", meaning 40 minutes past 2 o'clock. This way of speaking is commonly used in informal or spoken contexts.

Example: "I'll meet you at two forty" (我会在两点四十分见你)

"Two forty (minutes/p.m.)" - This is a more formal or written way of expressing the time. It is used primarily in formal or written contexts.

Example: "The meeting will start at 2:40 p.m." (会议将在下午两点四十分开始)