Use js to determine whether the current time zone TimeZone is daylight saving time_javascript skills

Copy code The code is as follows:

var d1 = new Date(2009, 0, 1);
var d2 = new Date(2009, 6, 1);
if (d1.getTimezoneOffset() != d2.getTimezoneOffset())
{
alert('Daylight Saving Time'); // Daylight Saving Time
}
else
{
alert('Daylight Time'); //Non-Daylight Saving Time
}