gmt

I am using a query to get some application Received Date from Oracle DB which is stored as GMT. Now I have to convert this to Eastern standard/daylight savings time while retrieving. I am using the below query for this: select to_char (new_time(application_recv_date,'gmt','est'), 'MON dd, YYYY') from application It works fine for Standard time. But for daylight savings time we need to convert it to 'edt' based on timezone info. I am not very sure on how to do this. Please help me out You can use this query, without having to worry about timezone changes. select to_char(cast(application_recv

I have a date stored on my online server database which is in GMT . I load the date and convert it to the user's timezone using the following code : if let messagedate = oneitem["timestamp"] as? String { let dateFormatter = NSDateFormatter() dateFormatter.dateFormat = "yyyy-MM-dd HH:mm:ss" let date = dateFormatter.dateFromString(messagedate) let source_timezone = NSTimeZone(abbreviation: "GMT") let local_timezone = NSTimeZone.systemTimeZone() let source_EDT_offset = source_timezone?.secondsFromGMTForDate(date!) let destination_EDT_offset = local_timezone.secondsFromGMTForDate(date!) let time

I have a db, that stores dates in OleDateTime format, in GMT timezone. I've implemented a class, extending Date in java to represent that in classic date format. But my class is locale-dependent (I'm in GMT+2). Therefore, it converts the date in the db as date - 2 hours . How do I make it convert the date correctly? I want my class to be locale-independent, always using GMT timezone. Actually, the question is: class MyOleDateTime extends Date { static { Locale.setDefault(WhatGoesHere?) } // ... some constructors // ... some methods } Well, it's better to use the Calendar object like suggested

My initial approach was: $current = time(); // save this to column CURRENT_TIME with column type VARCHAR //retrieve it like this $retrieved = mysql_query(....) //assume query for getting the stored time value $time = strtotime($retrieved); I have come across the following approaches: use gmstrftime to handle gmt use INT instead of VARCHAR for the column use the mysql function CURTIME or CURDATE use the UNIX_TIMESTAMP mysql function none of which were using the DATETIME or TIMESTAMP mysql var type. Do you have a better approach for this one? It is recommended to use mysql timestamp (YYYY-MM-DD

GMT、UTC、CTS： UTC时间：世界协调时间（UTC）是世界上不同国家用来调节时钟和时间的主要时间标准，也就是零时区的时间。UTC是以原子时秒长为基础，在时刻上尽量接近于GMT的一种时间计量系统。为确保UTC与GMT相差不会超过0.9秒，在有需要的情况下会在UTC内加上正或负闰秒。UTC现在作为世界标准时间使用。 GMT：即格林尼治标准时间，也就是世界时。GMT的正午是指当太阳横穿格林尼治子午线（本初子午线）时的时间。但由于地球自转不均匀不规则，导致GMT不精确，现在已经不再作为世界标准时间使用。所以，UTC与GMT基本上等同，误差不超过0.9秒。 CST时间：中央标准时间 Central Standard Time (USA) UT-6:00（美国cst时间：零区时减6个小时） Central Standard Time (Australia) UT+9:30（澳大利亚cst：加9个半小时） China Standard Time UT+8:00（中国cst:加8个小时） Cuba Standard Time UT-4:00 （古巴cst:减4个小时） 如：当UTC时间为0点时，中国CST时间为8点，因为零时区和中国北京时区相差8个时区。 时区： 地球自西向东旋转，东边比西边先看到太阳，东边的时间也比西边的早。为了统一世界的时间

javascript中的内置对象是我们经常会用到的，那么今天我们就来说说Date的四种构造方法吧 一、new Date() 　　 这是我们最常使用也最熟悉不过的Date对象的构造方法了，通过无参数的构造函数我们可以默认获取到一个代表实例化时的Date对象 var now = new Date(); console.log(now) //Thu Sep 19 2019 16:13:08 GMT+0800 (中国标准时间) 二、new Date(value) 　　 这个构造方法的参数是一个Number型，表示自1970年1月1日00:00:00 UTC（the Unix epoch）以来的毫秒数，忽略了闰秒。这个方法中可以用整型，也可以用浮点型，不过浮点型后面的小数点后的尾数一般会被忽略就是了。虽然在node环境（v10.15.3）下参数的确是从00:00:00时分开始计数，但是，通过实测发现在部分浏览器环境（在Edge，Chrome下如此）下参数是却从08:00:00开始计数，如下代码所示： //浏览器 var time1 = new Date(1000); var time2 = new Date(2000.2); var time3 = new Date(2000.8); console.log(time1); //Thu Jan 01 1970 08:00:01 GMT