Firebase - função para pegar timestamp do dia atual

import {Timestamp} from "firebase/firestore";

function getStartOfToday() {
	const now = new Date()
	now.setHours(-3, 0, 0, 0) // -3 hours for Brasilia Brasil
	const timestamp = Timestamp.fromDate(now)
	return timestamp // ex. 1631246400
}

//Uso na query
const q = query(docsRef, where("inicio", ">",
	getStartOfToday()))