How to write the date?

YYYYMMDD writes the date, which is actually the format of year, month and day.

"y" is the abbreviation of English year, which means: year.

"M" is the abbreviation of English month, which means: month, month.

"D" is the abbreviation of English day, which means: day.

So the date written by YYYYMMDD is actually the format of year, month and day. The first four digits are the year, the middle two digits are the month and the last two digits are the date, for example, 20 170826.

The date writing format in the file should be:

First, the date standard format:

The standard format of Gregorian calendar date is: February 6, 2007; Or February 6, 2007.

The standard format of lunar calendar date is: the 19th day of the twelfth lunar month in Dinghai year.

The standard format of the official calendar date is: Ding Hai Year, Ren Yin Year and Wei Xin Month.

2. The date shall not be written with decimal point or pause instead of year, month and day, such as February 6, 2007; 2007、2、6。

3. The year number of the year, month and day must be written completely, and it cannot be abbreviated as February 6, 2007 or February 6, 2007.