startOfDay

import { startOfDay } from "@cyref/js";

const date = new Date("2026-01-15T10:30:00");

const result = startOfDay(date);

console.log(result);
// 2026-01-15T00:00:00.000

import { startOfDay } from "@cyref/js";

const date = new Date("2026-03-20");

const result = startOfDay(date);

console.log(result);
// 2026-03-20T00:00:00.000

import { startOfDay } from "@cyref/js";

const date = new Date("2026-05-10T14:30:00");

const result = startOfDay(date);

console.log(date);
// 2026-05-10T14:30:00

console.log(result);
// 2026-05-10T00:00:00.000

import { startOfDay } from "@cyref/js";

const date = new Date("2026-08-25T18:45:32.500");

const result = startOfDay(date);

console.log(result.getHours());
// 0

console.log(result.getMinutes());
// 0

console.log(result.getSeconds());
// 0

console.log(result.getMilliseconds());
// 0

import { startOfDay } from "@cyref/js";

const date = new Date("2026-09-10T00:00:00.000");

const result = startOfDay(date);

console.log(result);
// 2026-09-10T00:00:00.000