export function zeroSinceHH(millisSinceEpoch: number): number {
  return new Date(millisSinceEpoch).setUTCHours(0, 0, 0, 0);
}

export function zeroSinceSS(millisSinceEpoch: number): number {
  return new Date(millisSinceEpoch).setUTCSeconds(0, 0);
}