DateTime.Now.ToUniversalTime().ToString("MMddyyyy", CultureInfo.InvariantCulture)

Day Formatters

d – Represents the day of the month as a number from 1 through 31

dd – Represents the day of the month as a number from 01 through 31

ddd – Represents the abbreviated name of the day of the week

dddd – Represents the full name of the day of the week

Month Formatters

M – Represents the month as a number from 1 through 12

MM – Represents the month as a number from 01 through 12

MMM – Represents the abbreviated name of the month

MMMM -Represents the full name of the month

Year Formatters

y – Represents the year as a one or two-digit number

yy – Represents the year as a two-digit number

yyy – Represents the year with a minimum of three digits

yyyy – Represents the year as a four-digit number

yyyyy – Represents the year as a five-digit number

Hour Formatters

h – Represents the hour as a number from 1 through 12

hh – Represents the hour as a number from 01 through 12

H – Represents the hour as a number from 0 through 23

HH – Represents the hour as a number from 00 through 23

Minute Formatters

m – Represents the minute as a number from 0 through 59

mm – Represents the minute as a number from 00 through 59

Second Formatters

s – Represents the seconds as a number from 0 through 59

ss – Represents the seconds as a number from 00 through 59

Time of Day Formatters

t – Represents the first character of the AM/PM designator

tt – Represents the AM/PM designator

: – Represents the time separator

/ – Represents the date separator