Chinese (full-width) colon is ":",occupying the width of a Chinese character. Press "Shift" and ";" At the same time, in full-frame mode. You can type the key. This colon should usually be used in Chinese writing.

In mathematics, the comparison symbol is ":",which is a mathematical symbol for proportion. It has no function of colon, so be careful not to misuse it.

English (half-width) colon is ":",which accounts for half the width of a Chinese character or English letter. Press "Shift" and ";" At the same time in half-angle mode. You can type the key. This kind of colon is usually used in western writing, such as English.

When indicating time, you can separate hours, minutes and seconds with colons (for example, 15:40). Note that this is not a comparison symbol. It is suggested to use half-angle instead of full-angle, because the number is half-angle.