InsulaVentus/date-time-and-time-zones.md

## date-time-and-time-zones.md

      
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              date-time-and-time-zones.md
            
          
    Say you have a string with a date and a time, e.g "24.07.2019 12:49", but no time zone.
And you want to format that string according to the ISO-8601 standard, with offset, e.g "2019-07-24T12:49:00+02:00".
In java:
LocalDate date = LocalDate.parse("27.07.2019", DateTimeFormatter.ofPattern("dd.MM.yyyy"));
LocalTime time = LocalTime.parse("12:49");
        
LocalDateTime.of(date, time)
        .atZone(ZoneId.of("Europe/Oslo"))
        .toOffsetDateTime()
        .format(DateTimeFormatter.ISO_OFFSET_DATE_TIME); //"2019-07-24T12:49:00+02:00"