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javaspringspring-mvcthymeleaf

Spring + Thymeleaf: time in user's timezone

How can I print date and time is specified timezone with Thymeleaf? Something like:

<span th:text="${#dates.format(myDate, 'yyyy-MM-dd HH:mm', 'PST')}">2010-01-01 16:30</span>
Solution

  • As I was puzzled by this question, I searched extensively for possible solutions.

    These are my findings: I did not found any clean function for changing timezone and displaying it like it is in jsp:

    <fmt:timeZone value="US">
<fmt:formatDate value="${today}"  type="both" />
</fmt:timeZone>

    Possible solution, that works would be to create calendar instance using createForTimeZone and format it, since it returns a raw calendar value, so from this:

    #calendars.createForTimeZone(year, month, day, hour, minute, second, milisecond, Object timezone)

    you would get something like this:

    java.util.GregorianCalendar[time=?,areFieldsSet=false,areAllFieldsSet=true,lenient=true,zone=sun.util.calendar.ZoneInfo[id="PST",offset=-28800000,dstSavings=3600000,useDaylight=true,transitions=185,lastRule=java.util.SimpleTimeZone[id=PST,offset=-28800000,dstSavings=3600000,useDaylight=true,startYear=0,startMode=3,startMonth=2,startDay=8,startDayOfWeek=1,startTime=7200000,startTimeMode=0,endMode=3,endMonth=10,endDay=1,endDayOfWeek=1,endTime=7200000,endTimeMode=0]],firstDayOfWeek=1,minimalDaysInFirstWeek=1,ERA=1,YEAR=2014,MONTH=1,WEEK_OF_YEAR=14,WEEK_OF_MONTH=1,DAY_OF_MONTH=24,DAY_OF_YEAR=91,DAY_OF_WEEK=3,DAY_OF_WEEK_IN_MONTH=1,AM_PM=0,HOUR=6,HOUR_OF_DAY=7,MINUTE=0,SECOND=0,MILLISECOND=0,ZONE_OFFSET=-28800000,DST_OFFSET=3600000]

    As you can see (you have to look carefully) it did converted time to the timezone provided.

    Now, I still haven't gotten to the point where I can get it all to work fine, but if you add calendars.format in front of this, you would get it to properly show time in the given timezone. ${#calendars.format(#calendars.createForTimeZone(year, month, day, hour, minute, second, milisecond, Object timezone), 'dd-MMM-yyyy HH:mm')}

    Adding "zzz" to the end of the string, always return my locale timezone. I guess there are way to work this out so it looks better, but main point for me was to find out if it was possible at all.

    Examples that work:

    ${#dates.format(#calendars.createForTimeZone(#calendars.year(ticket.ticketDate), #calendars.month(ticket.ticketDate), #calendars.day(ticket.ticketDate), #calendars.hour(ticket.ticketDate), #calendars.minute(ticket.ticketDate),'PST'), 'yyyy-MMM-dd HH:mm')}

${#calendars.format(#calendars.createForTimeZone(#calendars.year(ticket.ticketDate), #calendars.month(ticket.ticketDate), #calendars.day(ticket.ticketDate), #calendars.hour(ticket.ticketDate), #calendars.minute(ticket.ticketDate),'CET'), 'yyyy-MMM-dd HH:mm')}

    and either one would return identical results.

    Here are the results when comparing same format, using PST and CET:

    2014-Feb-24 16:00
2014-Feb-24 07:00

    or:

    2014-Mar-01 03:00
2014-Feb-28 18:00

    Regards,