What does this portion of the METAR mean: "PK WND 17027/2052"?

Question

What does this portion of the METAR mean: "PK WND 17027/2052"?

Answer 1

Peak Wind (PK_WND_dddff(f)/(hh)mm).  The peak wind shall be coded in the format, PK_WND dddff(f)/(hh)mm of the next METAR, where PK_WND is the remark identifier, ddd is the direction of the peak wind, ff(f) is the peak wind speed since the last METAR, and (hh)mm is the time of occurrence (only the minutes are required if the hour can be inferred from the report time).  There shall be a space between the two elements of the remark identifier and the wind direction/speed group; a solidus "/" (without spaces) shall separate the wind direction/speed group and the time.  For example, a peak wind of 45 knots from 280 degrees that occurred at 15 minutes past the hour would be coded "PK WND 28045/15".

http://www.ofcm.gov/fmh-1/pdf/L-CH12.pdf

Answer 2

It means "Peak Wind from [heading] 170 at 27 knots, time of  2052 Zulu [1:52 pm]".

Usually, I believe you'd only get the "52" on the time if the hour can be readily inferred, so it would just be "17027/52". If it wasn't obvious, they lengthen it out to the full time.