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javadatetimeunix-timestampjava-time

Timestamps of start and end of month in java

I want a program in which I give month and year and the program should return start and end timestamp of the month.

For example, if I pass January and 2011 to the method it will return start=1293840000 end = 1296518400

Is there any way to do this.

Solution

  • You can do something like this

    long startDate;
long endDate;

private void calculateMonthStartAndEndTime(int month, int year){
//create the first date of month
Calendar mycal = new GregorianCalendar(year,month, 1);
startDate = mycal.getTimeInMillis();

// Get the number of days in that month which actually gives the last date.
int lastDate = mycal.getActualMaximum(Calendar.DAY_OF_MONTH);
mycal = new GregorianCalendar(year, month, lastDate);
endDate = mycal.getTimeInMillis();
}