now.ps1

Function Global:Get-Now {
	$CI = New-Object System.Globalization.CultureInfo("en-AU")
	$Epoch = [DateTimeOffset]::UnixEpoch
	$Now = [DateTimeOffset]::Now
	$UnixDay = ($Now.UtcDateTime - $Epoch.UtcDateTime).Days
	$UnixDaySecond = [int]$Now.UtcDateTime.TimeOfDay.TotalSeconds
	$UnixSecond = $Now.ToUnixTimeSeconds()
	[PSCustomObject]@{
		DayOfYear = $Now.DayOfYear
		Global = $Now.UtcDateTime
		GlobalWeek = $CI.Calendar.GetWeekOfYear($Now.UtcDateTime, $CI.DateTimeFormat.CalendarWeekRule, $CI.DateTimeFormat.FirstDayOfWeek)
		Local = $Now.LocalDateTime
		LocalWeek = $CI.Calendar.GetWeekOfYear($Now.LocalDateTime, $CI.DateTimeFormat.CalendarWeekRule, $CI.DateTimeFormat.FirstDayOfWeek)
		Offset = $Now.Offset
		UnixDay = $UnixDay
		UnixDayHex = $UnixDay.ToString("X")
		UnixDaySecond = $UnixDaySecond
		UnixDaySecondHex = $UnixDaySecond.ToString("X") # This can get to 5 characters (max is 0x15180)
		UnixSecond = $UnixSecond
		UnixSecondHex = $UnixSecond.ToString("X")
	}}
Set-Alias -Name now -Value Global:Get-Now

$Env:SecondsInDay = 60 * 60 * 24
$Env:SecondsInYear = 60 * 60 * 24 * 365 # Only useful as rough guide (since it ignores leap years)