js set time format

ISO standard time format

Get the zero time format of the day

const date = new Date(new Date().setHours(0, 0, 0, 0));
const isoString = date.toISOString();

Effect
1. For example, get the time at 0:00 on 5.11

. 2. Get a random day

const date = new Date(new Date("2023-5-5").setHours(0, 0, 0, 0));
const isoString = date.toISOString();