[Description] Defines the formatting options that customize string parsing for the TimeSpan.ParseExact and TimeSpan.TryParseExact methods. [Enumeration] 
TimeSpanStyles
C a l e n d a r W e e k R u l e
C o m p a r e O p t i o n s
D a t e T i m e S t y l e s
G r e g o r i a n C a l e n d a r T y p e s
N u m b e r S t y l e s
T i m e S p a n S t y l e s
U n i c o d e C a t e g o r y