title: Setting the date's day / month / year to default, only care about time
body: <p>I have this <code>Date date</code> input variable, how can I set date's day to 1, month to 1, and year to 1970? I need to do this because this date is being checked if it is included in a range of Date type, and the range is is checking against has the default date, 1-1-1970. So I want to just scrap the month, day, and year part of the date completely and only check the time to see if is included in the range. By setting them input date's to 1-1-1970 will bypass that problem.</p>