public static String formatTime(long timestamp) {
        return dateFmt.format(Instant.ofEpochMilli(timestamp));
    }
@Test
    public void testFormatTime() {
        Assert.assertEquals("2019-06-15 12:13:14.000",
                EagleEyeCoreUtils.formatTime(1560600794000L - TimeZone.getDefault().getRawOffset()));
    }