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Editorial Team
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Asked: 2026-05-26T09:56:54+00:00

has anyone experienced such a strange reading from Java Calendar? The following snippet is

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has anyone experienced such a strange reading from Java Calendar? The following snippet is written in Groovy (in Grails)

Calendar cal = GregorianCalendar.getInstance(TimeZone.getTimeZone("Asia/Singapore"))    
cal.setTime(this.timeEnd)
def endHour = cal.get(Calendar.HOUR_OF_DAY)
def endMinute = cal.get(Calendar.MINUTE)
println "cal gettime ${cal.getTime()} -timeend- ${this.timeEnd} end hour!!! $endHour && $endMinute"

And it gets me the following result

cal gettime Thu Jan 01 16:20:00 GMT+08:00 1970 -timeend- 1970-01-01
16:20:00.0 end hour!!! 15 && 50

while my date shows 16:20, retrieving the individual field gives me 15:50.
Anyone has any idea?

Thank you,
Robert

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1 Answer

  1. Editorial Team

    Because ${cal.getTime()} and ${this.timeEnd} are Date values, and are formatted for the default timezone. You need a SimpleDateFormat to display a Date for a specific TimeZone.

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