Help with DST Expression

[dbabyn]

Our Daylight Savings time springs forward the second sunday in March at 2AM MST and falls back the first Sunday of November at 2AM MST so I have tried modifying this expression in an UPDATE DATA ACTION provided by Genesys. I am pretty new to expressions and can't quite understand it all. Any help would be greatly appreciated.

DateTime values in Architect flows and Daylight Savings Time (DST) calculations - Genesys Cloud Resource Center (mypurecloud.com)

Here is the modified Expression but it errors at (Month(Flow.UtcDateTime) > 3)

AddMinutes(Flow.StartDateTimeUtc,
(
          If(Flow.StartDateTimeUtc >= GetDayOfWeekOccurrence(1,-1,Year(Flow.StartDateTimeUtc),3,1,0,0)
               and Flow.StartDateTimeUtc <= GetDayOfWeekOccurrence(1,-1,Year(Flow.StartDateTimeUtc),10,1,0,0),
               -360,
               -420)
     )
)
(
      (Month(Flow.UtcDateTime) > 3)
        or
      (Month(Flow.UtcDateTime) == 3 and Month(AddDays(Flow.UtcDateTime, -7)) == 3 and Month(AddDays(Flow.UtcDateTime, -14)) == 3)
        or
      (
        (Month(Flow.UtcDateTime) == 3 and Month(AddDays(Flow.UtcDateTime, -7)) == 3 and Month(AddDays(Flow.UtcDateTime, -14)) == 2)
          and
        (DayOfWeek(Flow.UtcDateTime) > 1 or (Hour(Flow.UtcDateTime) >= 2))
      )
    )
    and
    (
      (Month(Flow.UtcDateTime) < 11)
        or
      (
        (Month(Flow.UtcDateTime) == 11 and Month(AddDays(Flow.UtcDateTime, -7)) == 10)
          and
        (
          (DayOfWeek(Flow.UtcDateTime) == 1 and Hour(Flow.UtcDateTime) < 2)
            or
          DayOfWeek(Flow.UtcDateTime)!=1
        )
      )
    )