epoch

Java - SimpleDateFormat formatter to return epoch time with milliseconds [duplicate]

由 陌路散爱 提交于 2019-12-12 16:38:45
问题 This question already has answers here : Convert a date format in epoch (5 answers) Closed 2 years ago . I am very new to Java and coding in general - I have some code which returns a timestamp in the following format yyyy.MM.dd HH:mm:ss:ms which is shown below: SimpleDateFormat formatter = new SimpleDateFormat("yyyy.MM.dd HH:mm:ss:sss"); This returns: 2017.07.19 11:42:30:423 Is there a way to edit the "SimpleDateFormat formatter" code above to return the date/time as an epoch timestamp that

Error Converting Epoch to DateTime in SQL Server when epoch is more than a Trillion seconds

由 耗尽温柔 提交于 2019-12-12 15:04:08
问题 I tried out many answers already given for converting EPOCH to SQL Server datetime. They work when the EPOCH has up to a billion seconds. But as soon as it crosses the Trillion mark it goes bust! E.g. --> 1. SELECT dateadd(MCS,1351187877744,'1970-01-01') 2. SELECT dateadd(NS,1351187877744,'1970-01-01') 3. SELECT dateadd(NANOSECOND, 1351187877744, '1970-01-01 00:00:00.0000000') 4. SELECT convert(bigint, datediff(ss, '01-01-1970 00:00:00',1351187877744)) All the above fail with the following

redis主从同步配置和哨兵机制监控master主从切换配置

由 人走茶凉 提交于 2019-12-12 13:46:49
【推荐】2019 Java 开发者跳槽指南.pdf(吐血整理) >>> 搭建好redis单机后，开始研究redis集群配置 两台VM虚拟机，都安装了redis程序，一台作为master 一台作为slave 首先配置redis主从配置 配置在redis.conf文件中 主机上需要设置masterauth(光主从同步不需要配置这个，但是后续配置哨兵机制的时候需要配置这个属性) 从机上需要配置slaveof 主机IP 主机端口，同样也许配置masterauth，密码和主机一样 启动主机，启动从机 在主机上set key value后 在从机上get key 能正常得到主机设置的值 但是要实现主从容错自动切换，就需要配置redis哨兵， redis-sentinel 是一个守护进程，作用有，监控，管理主从机，通知，主从切换功能 首先设置主机sentinel.conf sentinel monitor mymaster 127.0.0.1 6379 1 这句话的意思是监控集群名为mymaster的主机IP，端口，最后一个数字表示，当有几台哨兵监控到主机出错后执行主从切换 sentinel auth-pass mymaster 密码 这个密码需要和redis.conf中的masterauth一致 sentinel down-after-milliseconds mymaster 15000

Java: epoch date to MM/DD/YYYY

由 假装没事ソ 提交于 2019-12-12 12:26:23
问题 My time: 1386696238 My code: Date date = new Date(Long.parseLong(currentNotification.getDate_created())); SimpleDateFormat formatter = new SimpleDateFormat("MM/DD/yyyy", Locale.getDefault()); String dateString = formatter.format(date); My result: 1/16/1970 Desired result: 12/10/2013 What am I doing wrong? 回答1: Your value is in seconds, so you need to multiply it by 1000. Also, DD is day of year, you want dd : SimpleDateFormat formatter = new SimpleDateFormat("MM/dd/yyyy", Locale.getDefault())

Convert epoch time dataframe with index as epoch time to xts object as accepted by ts object for forecasting

由 旧街凉风 提交于 2019-12-12 06:44:21
问题 I have a dataframe in R of the form: y 1484337600 19.22819 1484341200 19.28906 1484344800 19.28228 1484348400 19.21669 1484352000 19.32759 1484355600 19.21833 1484359200 19.20626 1484362800 19.28737 1484366400 19.20651 1484370000 19.18424 It has epoch times and values. Epoch times are row.names in this dataframe. Now, I want to convert this dataframe into ts() as understood by ARIMA. So, what I figured out now is ; I should convert this dataframe zoo or xts so that my epoch times are

convert epoch to time_t

由 好久不见. 提交于 2019-12-12 04:33:01
问题 I have a epoch in double and need to pass in to a function that takes time_t. How do I convert the epoch in double to time_t? I am on Linux with C++ code. Thanks. 回答1: If you have the epoch in double , shouldn't this work? time_t t = static_cast<time_t>(epoch_time); Assuming you mean that the epoch is the number of seconds elapsed since 00:00:00 on January 1, 1970, Coordinated Universal Time. 来源： https://stackoverflow.com/questions/3216139/convert-epoch-to-time-t

How to convert a date in yyyy-mm-dd hh:mm:ss to unix epoch time

由 為{幸葍}努か 提交于 2019-12-12 03:35:51
问题 I have date format like 2016-02-26 14:12:36., I have to convert it into unix epoch time. I have the option to convert current time to epoch time using command : date +%s, however how to convert a specific date to epoch unix time 回答1: On the command line you convert the date provided to the UNIX epoch time like this: date -j -f "%Y-%m-%d %H:%M:%S" "2016-02-26 14:12:36" "+%s" This is on os x. The manual for date have some examples and strftime have all the formatting needed. 回答2: You can get

Oracle sql query needs to change based on timezone

由 爱⌒轻易说出口 提交于 2019-12-12 02:17:51
问题 I have a sql query to obtainrecords for a date range. My query works find byut when I analyzed data, I found that the records are retirved base don GMT timezone value, thus making the restults incorrect. I get my time from a unix epoch value in database. SELECT tableA.columnA,tableB.columnB FROM tableA INNER JOIN tableB ON tableA.aId = tableB.aId WHERE (to_date('1970-01-01 00:00:00 +10:00','yyyy-MM-dd hh24:mi:ss') + (tableB.epochValue/60/60/24/1000)) > to_date('--FROM_DATE--', 'yyyy-MM-dd

Why new Date(null) is returning this: Date 1970-01-01T00:00:00.000Z?

由 雨燕双飞 提交于 2019-12-11 23:26:46
问题 new Date(null) // Date 1970-01-01T00:00:00.000Z How come when I type new Date(null) in JavaScript console I'm getting Date 1970-01-01T00:00:00.000Z ? 回答1: Because the ECMAScript 2017 standard says so? The end of ECMA section 20.3.1.1 claims: The exact moment of midnight at the beginning of 01 January, 1970 UTC is represented by the value +0 . ...which might make you say, "...but!, but!, I did not say +0, I said": new Date(null) Ok, so let's follow the standard on that one... That Date

Convert unix time to UTC datetime

由 人盡茶涼 提交于 2019-12-11 18:38:11
问题 I'm trying to insert a timestamp into the database, I need the timestamp to be in UTC time, not the server's time zone. INSERT INTO my_table SET time = FROM_UNIXTIME(:epochTime) But the newly inserted datetime value is not in UTC time, how can I do this? Perhaps I should also use CONVERT_TZ, but I don't know the timezone from which I convert. 回答1: Yup I would look at CONVERT_TZ: http://dev.mysql.com/doc/refman/5.1/en/date-and-time-functions.html#function_convert-tz To grab the timezone from
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