UTCintermediateDate.UTC(2024, 0, 15) // β 1705276800000
// month is 0-indexed
new Date(Date.UTC(2024, 0, 15)).toISOString() // β '2024-01-15T00:00:00.000Z'Use Date.UTC() to compute the millisecond timestamp for a UTC date without constructing a Date object first.
When you pass Date.UTC(2024, 5, 15) to new Date(), the UTC month should be 5 (June).
Challenge: Verify that new Date(Date.UTC(2024, 5, 15)).getUTCMonth() returns 5.