julian day number conversion

Astronomy has a type of consecutive days of Confucianism (JD), which begins with the GMT noon of January 1, 4713 BC on 0th. There is also a simplified Confucianism Day (MJD): MJD = JD-2400000.5 MJD's 0th day started from GMT on November 17, 1858 AD.

This article mainly introduces the conversion of the date of PHP to JDE of the Julian calendar format method, has a certain reference value, now share to everyone, the need for friends can refer to JDE's Julian calendar format rules are as follows:

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

This article is not ready to introduce all of the Oracle functions, in the current situation, I do not have this time, need to learn too much, to spend most of the time on learning to use the technical aspects:), so if you are ready to learn all the

This article will introduce some interesting functions that trisi often uses in daily life, or which are rarely used. There are two types of introduction: Famous functions-frequently used functions Non-famous functions-although rarely used, they are

This article will introduce some of the functions that are often used in everyday life, or that are very interesting, though they are rarely used. It is divided into two kinds of introductions, namely: Famous letters-functions that are often

To_char (X[[,C2],C3])Feature converts a date or data to a char data typeParametersX is a date or number data type.C2 as format parameterC3 Setting parameters for NLSIf x is the date nlsparm=nls_date_language controls the language that is used for

1) number of seconds = "string 1234567 from time import * def secs2str(secs):        returnstrftime("%Y-%m-%d %H:%M:%S",localtime(secs)) >>> secs2str(1227628280.0)'2008-11-25 23:51:20' 2) string = "seconds 123456 from

The Oracle to_char (datetime, FMT) function converts datetime values to a string in the format specified by the FMT option. MySQL has the date_format function that allows datetime values converting to a string in the specified format. Sqlways

Java Java.util.Calendar is used for date and time operations. Use this class whenever you have some minor actions (other than just the date and time) that you need to perform. (Original: Whenever you have something slightly more advanced than just