日期计算器 推算相隔天数、中间日期、未来日期
A. 日期区间计算
可计算两个日期之间相隔了多少天数，或是取得两个日期的中间日期。
B. 日期推算工具
推算某个日期在经过输入天数之后所在的日期。也能够往前进行推算。
What is a date calculator?
A: Want to know how many days are between two dates, or how many days after a certain date
We often encounter the need to calculate two dates, such as how many days are left from the end of the graduation trip to prepare for the college entrance examination, or how many days are left from today to the expected date of delivery. There is also an additional function to calculate the middle date. For example, you may want to ask your partner for a gift, but your birthday and anniversary have not yet arrived. You can calculate the middle date of the two, and then tell the other half that this is the middle date anniversary and you must remember it! The last function is date extrapolation, which can calculate the date of any number of days before or after, for example, you can calculate the 10,000th day after your birth.
Read the blog introduction：[Tool Introduction] Date Calculator - Date Duration Calculation, Date Extrapolation