fun getDeviceStartOfCurrentDay(): Long {
    val zoneId = ZoneId.systemDefault()
    val midnight = LocalTime.MIN
    val today: LocalDate = LocalDate.now(zoneId)
    val todayMidnight: LocalDateTime = LocalDateTime.of(today, midnight)
    val zdt = todayMidnight.atZone(zoneId)

    return zdt.toEpochSecond() * 1000
}