localtime

How to find next day's Unix timestamp for same hour, including DST, in Python?

由 て烟熏妆下的殇ゞ 提交于 2019-12-23 09:18:05
问题 In Python, I can find the Unix time stamp of a local time, knowing the time zone, like this (using pytz): >>> import datetime as DT >>> import pytz >>> mtl = pytz.timezone('America/Montreal') >>> naive_time3 = DT.datetime.strptime('2013/11/03', '%Y/%m/%d') >>> naive_time3 datetime.datetime(2013, 11, 3, 0, 0) >>> localized_time3 = mtl.localize(naive_time3) >>> localized_time3 datetime.datetime(2013, 11, 3, 0, 0, tzinfo=<DstTzInfo 'America/Montreal' EDT-1 day, 20:00:00 DST>) >>> localized_time3

How quickly is CRON triggered?

由 青春壹個敷衍的年華 提交于 2019-12-23 08:03:46
问题 First Example Suppose I have a CRON job 30 2 * * * .... Then this would run every time when it is 2:30 at night (local time). Now suppose I have the time zone Europe/Germany and it's 2017-10-29 (the day when DST is switched). Then this CRON job would run twice, right? Second Example Suppose I have the time zone Europe/Germany and the CRON job 30 11 * * * .... As Germany never had a DST change at 11:30, this will not interfere. But the user could change the local time. To be super clear: This

Calculating the time difference between two times in Java

由 旧时模样 提交于 2019-12-23 04:58:39
问题 String time1 = br.readLine(); DateFormat sdf = new SimpleDateFormat("hh:mm:ss",Locale.ENGLISH); Date d1 = sdf.parse(time1); int n = Integer.parseInt(br.readLine()); for(int i=0;i<n;i++) { String time2 = br.readLine(); Date d2 = sdf.parse(time2); long diffMs = d1.getTime() - d2.getTime(); System.out.println(diffMs/(1000*60*60)); Input: time1 = 23:05:38 time2 = 12:36:07 Output should be 10 but it’s giving 22 . 回答1: First, I am assuming that the calculation takes place in a time zone without

Timezone in date?

由 喜欢而已 提交于 2019-12-22 08:29:47
问题 From where does the date command in Linux get the timezone information? I cannot see /etc/localtime file and /usr/share/zoneinfo direcory in my system. Still when i execute the date command i get the following output Thu Dec 9 16:28:18 UTC 2010 Kindly tell me from where does the command get the timezone information? Thanks, LinuxPenseur 回答1: Don't forget that UTC is how standard Unix systems store the date/time in the real time clock. You have to jump through hoops using funny programs (see

How to store LocalTime in hibernate

由 一个人想着一个人 提交于 2019-12-22 05:03:04
问题 I have an entity that has a variable of type LocalTime and I would like to store it in database. So I have two questions: What data type will the field in mysql be? What annotation to use for entity? I do not care for date at all whatsoever. 回答1: hibernate-java8 provide a LocalTimeType for persist a LocalTime field.Since hibernate-java8-5.2.+ has been merged into the hibernate-core module. Usage saving LocalTime as sql time column. @Column private LocalTime time; saving LocalTime as sql

How to store LocalTime in hibernate

由 ╄→尐↘猪︶ㄣ 提交于 2019-12-22 05:02:07
问题 I have an entity that has a variable of type LocalTime and I would like to store it in database. So I have two questions: What data type will the field in mysql be? What annotation to use for entity? I do not care for date at all whatsoever. 回答1: hibernate-java8 provide a LocalTimeType for persist a LocalTime field.Since hibernate-java8-5.2.+ has been merged into the hibernate-core module. Usage saving LocalTime as sql time column. @Column private LocalTime time; saving LocalTime as sql

python常用模块之时间模块

由 生来就可爱ヽ(ⅴ＜●) 提交于 2019-12-22 04:53:53
一、time模块 time模块是我们主要使用的一个关于时间的模块，它有三种表示时间的方式分别是时间戳、格式化时间字符串、时间元祖，并且这三种时间的表示方法是可以转换的，具体的用法如下， time.time()：显示的是时间戳。 time.localtime():以元祖的形式显示当前时区的时间日期，并可以从中取值 1 print(time.localtime()) #获取当前时区的日期时间 2 print(time.localtime().tm_year) #获取当前的年份 3 -------------------------------------------------------------------------------------- 4 time.struct_time(tm_year=2017, tm_mon=8, tm_mday=8, tm_hour=15, tm_min=7, tm_sec=15, tm_wday=1, tm_yday=220, tm_isdst=0) 5 2017 View Code time.gmtime():以元祖的形式显示UTC时区的时间日期，用法类似localtime time.strftime():以指定格式的字符串显示当前的日期时间 1 print(time.strftime('%Y-%m-%d %H:%M:%S',time

Java TimeZone 和 Linux TimeZone问题

由 孤人 提交于 2019-12-22 00:25:27
【推荐】2019 Java 开发者跳槽指南.pdf(吐血整理) >>> 昨天发现跑在Linux上的java程序获取的默认时区有问题。 由于我所用Linux的时区由/etc/localtime所指的文件（如果环境变量TZ不存在时): [xx:~]> ls -l /etc/localtime lrwxrwxrwx 1 root root 18 Jun 21 2008 /etc/localtime -> /var/etc/localtime [xx:~]> ls -l /var/etc/localtime lrwxrwxrwx 1 root root 30 May 14 09:46 /var/etc/localtime -> /usr/share/zoneinfo/US/Eastern 开始时，我以为应该是和/etc/localtime指向的时区一样的，接着才发现原来java在没有TZ环境变量时取的是 /etc/sysconfig/clock 中的时时区。 Sun上面有和我这种情况相关的bug - Default timezone is incorrectly set occasionally on Linux(http://bugs.sun.com/view_bug.do?bug_id=6456628), 里面描述了java vm取的默认timezone的算法: 1)如有环境变量

百度AI开放平台- API实战调用

由 梦想与她 提交于 2019-12-21 23:08:00
百度 AI 开放平台 - API 实战调用 一、 前言 首先说一下项目需求。 两个用户，分别上传了两段不同的文字，要计算两段文字相似度有多少，匹配数据库中的符合条件的数据，初步估计列出来会有60-100条左右，不会更多，只会更少。最终的需求是：从这些匹配结果中找到相似度较高的那些条目。 自己编写算法来实现是一个很大的工程，涉及到自然语言处理的一些方面，比较复杂。于是上网搜了搜，发现百度开放平台的自然语言处理可以免费调用，而且每天有10W的调用次数，对我的小项目来说正好满足。但是，在往下翻的时候，发现百度给了提示，不保证并发，也就是说，在我调用的时候很容易出现返回错误结果的情况，这部分需要进行适当的处理。 既然是实战，我们从头开始说。 二、 准备工作 从哪里开始说呢，从在百度开放平台创建一个应用说起。创建应用之后（下面的开发环境是PHP，所以在选择应用使用类型的时候填写HTML），会有应用的ID，key，secret。后两个参数接下来会有用。 我使用的是短文本相似度API，其他类型的功能与此基本一模一样（不接受抬杠）。先去看开发文档 http://ai.baidu.com/docs#/NLP-API/top 可以看到提供了两种调用方式，这里我们以调用方式一为例- 向 API 服务地址使用 POST 发送请求 ，这种方式来实现上述功能。看描述，需要一个参数叫做 access_token

c++ localtime when changing timezone

由 ◇◆丶佛笑我妖孽 提交于 2019-12-21 16:57:57
问题 I have a setup working using localtime() to get a tm with the local times represented in it. And that is all good. However, if I change timezone while the application is running, it does not notice that I have changed timezones. Is there some way to tell it to 'go look again' to refresh to the system timezone? I know this is probably not a common case, but it is what test are doing to test this feature, so they want it supported! 回答1: There's nothing in the standard library to do this. Unless
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