time

问题 I like to add event duration to a previous record every time a new record gets added. This is what I have ID EventType EventTime EventDuration ------------------------------------- 1 TypeA 10:20 NULL 2 TypeB 09:30 NULL 3 TypeC 08:00 NULL This is what I want to achieve: ID EventType EventTime EventDuration ------------------------------------- 1 TypeA 10:20 00:50 2 TypeB 09:30 01:30 3 TypeC 08:00 ... 4 ... ... When a new records gets added (with ID, EventType and EventTime), the duration of

问题 I am writing this question related to this. In his reply, Marco gave me an excellent answer but, unfortunately, I am new with OpenModelica so I would need some further help. I am actually using OpenModelica and not Dymola so unfortunately I have to build the function that does it for me and I am very new with OpenModelica language. So far, I have a model that simulates the physical behavior based on a DAEs. Now, I am trying to build what you suggest here: With get time() you can build a

问题 I am having trouble using java's LocalTime to parse a string with hours, minutes, and seconds. LocalTime t = LocalTime.parse("8:30:17"); // Simplification This throws the following exception: Exception in thread "main" java.time.format.DateTimeParseException: Text '8:30:17' could not be parsed at index 0 回答1: You'll need to pass in a custom DateTimeFormatter like this: DateTimeFormatter formatter = DateTimeFormatter.ofPattern("H:mm:ss"); LocalTime t = LocalTime.parse(times.get(i), formatter);

问题 I am having trouble using java's LocalTime to parse a string with hours, minutes, and seconds. LocalTime t = LocalTime.parse("8:30:17"); // Simplification This throws the following exception: Exception in thread "main" java.time.format.DateTimeParseException: Text '8:30:17' could not be parsed at index 0 回答1: You'll need to pass in a custom DateTimeFormatter like this: DateTimeFormatter formatter = DateTimeFormatter.ofPattern("H:mm:ss"); LocalTime t = LocalTime.parse(times.get(i), formatter);

问题 Ever since virtualizing several physical servers into GCP, I have had an issue where anytime the servers(s) are rebooted the time is changed to be several hours ahead (I think it's 4 hours, but may be 6 hours). My local office is located in CST time zone and that is what we want the server to display. In GCP the virtual servers are in the us-central1a zone. On the virtual server, run the tzutil /g command it shows that the server is set to "central standard time". It also shows Central

问题 Looking for a way to group sequential timeclock records into a single row. The source system has an identity column, employee id, date and in/out flag (1=in & 2=out). Note that the ID EmployeeID DATE InOut 1019374 5890 2008-08-19 14:07:14 1 1019495 5890 2008-08-19 18:17:08 2 1019504 5890 2008-08-19 18:50:40 1 1019601 5890 2008-08-19 22:06:18 2 I am looking for sql that would give me the following result EmployeeID ClockIn BreakStart BreakEnd ClockOut 5890 2008-08-19 14:07:14 2008-08-19 18:17

问题 So I have some items stored in Rails.cache and I always write them with :expires_in => 5.minutes My question is, is there a way to see what the ttl is on a cache entry? I know the entry class in activesupport has a method but I can't seem to get an entry object out of Rails.cache methods. I'm implementing rate limiting by the way. 回答1: You can check ttl in Rails cache using command below. Rails.cache.data.ttl("yourkey") 来源： https://stackoverflow.com/questions/24896449/checking-ttl-for-rails

问题 Expected behavior Show users a random value (color) from the arr array on each refresh. Each day a different file ( file-1.json , file-2.json , etc) should be loaded into arr . This should reset at 00:00 UTC server time. Only values from that day's associated file should be displayed. Unexpected behavior All works well, until users change the clock on their local machines/phones. Then they can effectively see future & past values as well. Date/time can be manipulated client-side, which

问题 I am trying to build a live video captioning editor and require that the JS/DOM returns the current video timeframe with milliseconds. According to the DOM, video.currentTime only returns the value in seconds. Is there anyway to get the value in/with milliseconds? 回答1: currentTime includes milliseconds. Open a YouTube video, open your console, then enter document.getElementsByTagName('video')[0].currentTime; You'll see the time milliseconds and beyond: 24.530629 回答2: ontimeupdate event gives

问题 I need to store and compare dates (without times) in my app, without caring about time zones. I can see three solutions to this: (date1.year == date2.year && date1.month == date2.month && date1.day == date2.day) This is what I'm doing now, but it's horrible verbose. date1.format("YYYYMMDD") == date2.format("YYYYMMDD") This is still rather verbose (though not as bad), but just seems inefficient to me... Create a new Date class myself, perhaps storing the date as a "YYYYMMDD" string, or number