epoch

Seconds since epoch to relative date

由 邮差的信 提交于 2019-12-10 04:13:34
问题 I'm working with dates since epoch, and already got, for example: date = 6928727.56235 I'd like to transform this into another relative format, so that I'll be able to transform this into something relative to epoch. Using time.gmtime(date), it returned year=1970, mon=3, day=22, hour=4, min=38, sec=47 I think epoch starts in '01/01/1970 00:00:00', so the method should return the relative date in something like: '2 months 21 days 04:38:47' Anything that help? 回答1: from datetime import

Convert Instant to microseconds from Epoch time

由 倾然丶 夕夏残阳落幕 提交于 2019-12-10 01:45:50
问题 In Instant there are methods: toEpochMilli which converts this instant to the number of milliseconds from the epoch of 1970-01-01T00:00:00Z getEpochSecond which gets the number of seconds from the Java epoch of 1970-01-01T00:00:00Z . Both of these methods lose precision, e.g. in toEpochMilli JavaDoc I see: If this instant has greater than millisecond precision, then the conversion drop any excess precision information as though the amount in nanoseconds was subject to integer division by one

Is there a better way to convert from UTCTime to EpochTime?

由 生来就可爱ヽ(ⅴ＜●) 提交于 2019-12-09 16:34:01
问题 I want to set a file's modification time to the time I got from exif data. To get the time from exif, I found : Graphics.Exif.getTag :: Exif -> String -> IO (Maybe String) To set the file modification time, I found : System.Posix.Files.setFileTimes :: FilePath -> EpochTime -> EpochTime -> IO () Assuming I do find a Time in Exif, I need to convert a String to an EpochTime. With parseTime I can get a UTCTime . With utcTimeToPOSIXSeconds I can get a POSIXTime With a POSIXTime I can more or less

Converting Epoch to Date in Matlab

由 ∥☆過路亽．° 提交于 2019-12-09 06:09:37
问题 I have an array of Epoch milliseconds (array of numbers) in Matlab. I would like to convert these into UTC date-time format, such as DD-MM-YYYY HH:MM. Is there a pre-defined Matlab way to do this or will I have to write my own function? 回答1: Suppose, you start with a vector time_unix , then: >> time_unix = 1339116554872; % example time >> time_reference = datenum('1970', 'yyyy'); >> time_matlab = time_reference + time_unix / 8.64e7; >> time_matlab_string = datestr(time_matlab, 'yyyymmdd HH:MM

Convert eg. 2012-05-25 to seconds since January 1 1970

由 青春壹個敷衍的年華 提交于 2019-12-09 05:57:18
问题 I have a database where I save time as time() from php, which is seconds since 1 jan 1970 . Is there any way I can convert, for example 2012-12-12 to seconds since 1 jan 1970 ? I want to do like: SELECT * FROM Table WHERE date > '2012-11-30' AND date < '2012-12-30' Is this even possible? (I would like to do it without any php date()) 回答1: DATEDIFF is going to be your friend here: select datediff(s, '1970-01-01', '2012-12-12') as SecondsSinceEpoch Note that because datediff returns an int, the

Why does the Django time zone setting effect epoch time?

由 有些话、适合烂在心里 提交于 2019-12-08 17:27:39
I have a small Django project that imports data dumps from MongoDB into MySQL. Inside these Mongo dumps are dates stored in epoch time. I would expect epoch time to be the same regardless of time zone but what I am seeing is that the Django TIME_ZONE setting has an effect on the data created in MySQL. I have been testing my database output with the MySQL UNIX_TIMESTAMP function. If I insert a date with the epoch of 1371131402880 (this includes milliseconds) I have my timezone set to 'America/New_York' , UNIX_TIMESTAMP gives me 1371131402 , which is the same epoch time excluding milliseconds.

How to convert a date time string to long (UNIX Epoch Time) Milliseconds in Java 8 (Scala)

由 故事扮演 提交于 2019-12-08 07:54:59
问题 This question solves the case for seconds: How to convert a date time string to long (UNIX Epoch Time) in Java 8 (Scala) But if I want milliseconds it seems I have to use def dateTimeStringToEpoch(s: String, pattern: String): Long = LocalDateTime.parse(s, DateTimeFormatter.ofPattern(pattern)) .atZone(ZoneId.ofOffset("UTC", ZoneOffset.ofHours(0))) .toInstant().toEpochMilli which is ugly for the 4 issues I detail in the other question (main things I don't like is the magic literal "UTC" and the

Why does the Django time zone setting effect epoch time?

由 谁都会走 提交于 2019-12-08 06:48:08
问题 I have a small Django project that imports data dumps from MongoDB into MySQL. Inside these Mongo dumps are dates stored in epoch time. I would expect epoch time to be the same regardless of time zone but what I am seeing is that the Django TIME_ZONE setting has an effect on the data created in MySQL. I have been testing my database output with the MySQL UNIX_TIMESTAMP function. If I insert a date with the epoch of 1371131402880 (this includes milliseconds) I have my timezone set to 'America

Is it possible to set a git commit to have a timestamp prior to 1970?

由 十年热恋 提交于 2019-12-08 02:43:19
问题 Unix timestamps are signed 32 bit integers (64 bit on some systems today, or so I understand). On some software products this allows you to use dates going back as far as 1903 or so. However, when I try the following: git commit -m "this is a test commit" --date="1960-04-07 18:00:00" I receive an "fatal: invalid date format" error. This isn't very practical (I'm not a time-traveler), but I've been wondering about using git for historical purposes. Can this be forced with a git plumbing

消息系统kafka的HA(高可用)（极简版）

由 不问归期 提交于 2019-12-07 07:59:45
“致"高级"工程师(BUG工程师) 一颗折腾的心💗 原创不易，点个赞，点个关注，支持支持！！ 1 replication 如图所示，同一个 partition 可能会有多个 replica（对应 server.properties 配置中的 default.replication.factor=N）。 没有 replica 的情况下，一旦 broker 宕机，其上所有 patition 的数据都不可被消 费，同时 producer 也不能再将数据存于其上的 patition。 引入replication 之后，同一个 partition 可能会有多个 replica，而这时需要在这些 replica 之间选出一个 leader，producer 和 consumer 只与这个 leader 交互，其它 replica 作为 follower 从 leader 中复制数据。 Kafka 分配 Replica 的算法如下： 将所有 broker（假设共 n 个 broker）和待分配的 partition 排序 将第 i 个 partition 分配到第（i mod n）个 broker 上 将第 i 个 partition 的第 j 个 replica 分配到第（(i + j) mode n）个 broker上 2 leader failover 当 partition 对应的
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