Why does ZonedDateTime now = ZonedDateTime.now(); System.out.println(now.withZoneSameInstant(ZoneOffset.UTC) .equals(now.withZoneSameInstant(ZoneId.of(“UTC”)))); print out false? I would expect the both ZonedDateTime instances to be equal. 1 Answer 1
I want the server to always serve dates in UTC in the HTML, and have JavaScript on the client site convert it to the user’s local timezone. Bonus if I can output in the user’s locale date format. 17 Answers 17
My dataframe has a DOB column (example format 1/1/2016) which by default gets converted to Pandas dtype ‘object’. Converting this to date format with df[‘DOB’] = pd.to_datetime(df[‘DOB’]), the date gets converted to: 2016-01-26 and its dtype is: datetime64[ns]. Now I want to convert this date format to 01/26/2016 or any other general date format. How … Read more
How would I generate a random date that has to be between two other given dates? The function’s signature should be something like this: random_date(“1/1/2008 1:30 PM”, “1/1/2009 4:50 AM”, 0.34) ^ ^ ^ date generated has date generated has a random number to be after this to be before this and would return a … Read more
Is there a simple function for rounding UP a DateTime to the nearest 15 minutes? E.g. 2011-08-11 16:59 becomes 2011-08-11 17:00 2011-08-11 17:00 stays as 2011-08-11 17:00 2011-08-11 17:01 becomes 2011-08-11 17:15 15 Answers 15
I have the following code in my C# program. DateTime dateForButton = DateTime.Now; dateForButton = dateForButton.AddDays(-1); // ERROR: un-representable DateTime Whenever I run it, I get the following error: The added or subtracted value results in an un-representable DateTime. Parameter name: value Iv’e never seen this error message before, and don’t understand why I’m seeing … Read more
This is a bit of my JS code for which this is needed: var secDiff = Math.abs(Math.round((utc_date-this.premiere_date)/1000)); this.years = this.calculateUnit(secDiff,(86400*365)); this.days = this.calculateUnit(secDiff-(this.years*(86400*365)),86400); this.hours = this.calculateUnit((secDiff-(this.years*(86400*365))-(this.days*86400)),3600); this.minutes = this.calculateUnit((secDiff-(this.years*(86400*365))-(this.days*86400)-(this.hours*3600)),60); this.seconds = this.calculateUnit((secDiff-(this.years*(86400*365))-(this.days*86400)-(this.hours*3600)-(this.minutes*60)),1); I want to get the datetime in “ago”, but if the DST is in use then the dates are off by 1 hour. … Read more
How do I get the UTC time, i.e. milliseconds since Unix epoch on Jan 1, 1970? 8 Answers 8
How do I create a datetime in Python from milliseconds? I can create a similar Date object in Java by java.util.Date(milliseconds). Allocates a Date object and initializes it to represent the specified number of milliseconds since the standard base time known as “the epoch”, namely January 1, 1970, 00:00:00 GMT. 5 Answers 5
I want to do something like: Date date = new Date(); // current date date = date – 300; // substract 300 days from current date and I want to use this “date” How to do it? 10 Answers 10