days since january 1 1970

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Obtain the number of days since January 1, January 1, 1970

#! /Usr/bin/KSh # Author: xin23 # version: Beta 0.1 # Date: 2014-09-05get_days_from_1970 () {beginyear = 1970 endyear = $ (date + % Y) yearnum = $ ($ endyear-$ beginyear) lyearnum = $ ($ yearnum/4) rnum =$ {lyearnum %. *} daynumy = $ ($ yearnum * 365

Why is the time in many languages of computers calculated from midnight on January 1, 1970?

programming languages are affected by computer systems, and modern computer systems are widely affected by UNIX systems, and the time of January 1, 1970 is the starting Time for UNIX systems (epoch time). So each timestamp is expressed by how long

Units are seconds since 1970., unitsseconds

Units are seconds since 1970., unitsseconds In the actual development process of Android, we often encounter a date in seconds. In this case, we can format them as needed. The specific steps are as follows: LongSeconds = Long.ParseLong("14058896995

String2date: calculate the number of days between two dates (Java)

The test is as follows: Public long date2date (string sdate1, string sdate2) throws exception {Simpledateformat SDF = new simpledateformat ("yyyy-mm-dd ");Date date1 = SDF. parse (sdate1 );Date date2 = SDF. parse (sdate2 );Return date2.gettime ()/(24

PHP Time function

Here are some of the time functions in PHP:(1) DateUsage: Date (format, [time]);If there is no time parameter, the current time is used. The format is a string in which the following characters have special meanings:U is replaced by the number of

PHP Time Function collation

Here are some of the time functions in PHP:(1) DateUsage: Date (format, [time]);If there is no time parameter, the current time is used. The format is a string, where the following characters have special meanings:U is replaced by the number of

PHP Time Function collation

Here are some of the time functions in PHP:(1) DateUsage: Date (format, [time]);If there is no time parameter, the current time is used. The format is a string in which the following characters have special meanings:U is replaced by the number of

Joda-time: Since you can't get rid of time, why not try to simplify time processing?

When writing an enterprise application, I often need to process the date. And in my latest project-Insurance industry-correcting date calculations is particularly important. Using Java.util.Calendar makes me a little uneasy. If you've ever used this

Linuxunix-time timestamp processing conversion function

Linux/unix-time timestamp processing conversion functionThe time function under LinuxWe can often use time in programming, such as getting the system time (to get the system's year, month, day, hour, minute, second, week, etc.), or to do something

Java.util.Date and Java.util.Calendar and related classes

Datedate represents a specific moment, accurate to milliseconds. Before JDK1.1, date has two other functions. It allows you to interpret dates as year, month, day, hour, minute, and second values. It also allows formatting and parsing of date

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