unix-timestamp

问题 I have a time string in the following format YYYY-MM-DD hh:mm:ss . I would like to convert it to the equivalent of passing the date-string into the mysql unix_timestamp function using Javascript. I tried parsing the date and passing it into the Date.UTC() function but it seems to be giving me different times then what I want. help. 回答1: If you are supplying a UTC timestamp and want seconds since 1/1/1970, then: [...] Edit Revisited my original answer and didn't like it, the following is

问题 In hsqldb the function TIMESTAMP ( ) returns a WITHOUT TIME ZONE timestamp which is adjusted to session's time zone before any further conversion. So lets say my session is at UTC+1 and I have a unix timestamp of 1364353339 (Wed, 27 Mar 2013 03:02:19 GMT, according to http://www.onlineconversion.com/unix_time.htm) coming from elsewhere. If I call: VALUES( TIMESTAMP( 1364353339 ) AT TIME ZONE INTERVAL '0:00' HOUR TO MINUTE ); which gives 2013-03-27 02:02:19.000000+0:00 . This has the correct

问题 I am trying to select some documents from documentDB collection, in an incremental way, so every slice will select based on the "timeCreated" field of the collection. The problem is that this field (timeCreated) is in seconds since the epoch (1970-01-01) and I could not find the proper format here. As project's assumptions, we are working with Azure Portal and without any programming interface, so the only solution I could think of is creating UDF in the DocumentDB that will transform the

问题 I'm trying to calculate the difference between two UNIX timestamps (i.e. seconds since 1970). I want to say e.g. "3 years, 4 months, 6 days, etc" but I don't know how to account for leap years and months of different durations. Surely this is a solved problem..? This is different to other questions which want to express an approximate duration in one unit that has a fixed/homogeneous duration (e.g. 3 hours, or 7 weeks, etc.). Results for 1. Jan to 1. Feb would be "1 month" and results for 1.

问题 I have a unix timestamp in PHP : $timestamp = 1346300336; Then I have an offset for timezones which I want to apply. Basically, I want to apply the offset and return a new unix timestamp. The offset follows this format, and unfortunately can't be changed due to compatibility with other code: $offset_example_1 = "-07:00"; $offset_example_2 = "+00:00"; $offset_example_3 = "+07:00"; I tried: $new_timestamp = strtotime($timestamp . " " . $offset_example_1); But this does not work unfortunately :(

问题 I am trying to select data from a table based on timestamps (stored as int(10)). The timestamps correspond to unix timestamps. I am using MySQL 5. Question : How can I select the data based on the following rule: get all records, where the timestamp is from 9 to 10 o'clock. Nothing else. Timestamp could be in the 70's or today. 回答1: If you're storing the value as a UNIX timestamp, you'll need to convert the value into MySQL's timestamp format before using the HOUR function. WHERE HOUR(FROM

问题 I need to "construct" .NET DateTime values in Python/C++. How can I compute the number of ticks stored by DateTime starting from a UNIX timestamp? A solution involving Win32 API calls it's ok (I believe FILETIME functions could help). 回答1: This would give you the number of ticks since that the Unix Epoc starts at (which is 621,355,968,000,000,000) (new DateTime( 1970,1,1) - DateTime.MinValue).Ticks This gives you ticks per second (which is 10,000,000) TimeSpan.TicksPerSecond Just math from

问题 How can I convert unix timestamp to hh:mm:ss:SSS (where SSS is milliseconds) in AWK. For example: echo 1456478048306 > time cat time | awk ....... > readable_time_format 回答1: You can use bash for that: #!/bin/bash ts="1456478048306" unix_epoch=${ts:0:-3} ms=${ts:((-3)):3} echo "$(date -d@"${unix_epoch}" +%H:%M:%S):${ms}" Btw, of course you can also use awk . However awk does not allow to simplify things here a lot, the algorithm is more or less the same: awk -v ts="1456478048306" '{ unix

问题 I have a column in a DF and it contains timestamp in format ( yyyy-mm-dd HH:mm:ss). I need to round timestamp to nearest 30 seconds. old column desired column 2016-02-09 19:31:02 2016-02-09 19:31:00 2016-02-09 19:31:35 2016-02-09 19:31:30 2016-02-09 19:31:52 2016-02-09 19:32:00 2016-02-09 19:31:28 2016-02-09 19:31:30 Is it possible to do that in Pyspark ? 回答1: If you're using spark verson 1.5+, you can use pyspark.sql.functions.second() to get the seconds from your timestamp column. import

问题 Suppose that the time on my computer is incorrect (say 1 day ahead). Is there a way to get the current Unix Timestamp in this case? This answer outlines few way to get the Unix Timestamp, but from what I can see they all assume that machine's time is accurate. 回答1: Check for this api http://www.timeapi.org/ <script type="text/javascript"> function myCallback(json) { alert(new Date(json.dateString)); } </script> <script type="text/javascript" src="http://timeapi.org/utc/now.json?callback