## c -
   # Create Character Vectors:
   dts = c("1989-09-28", "2001-01-15", "2004-08-30", "1990-02-09")
   dts
   tms = c(  "23:12:55",   "10:34:02",   "08:30:00",   "11:18:23")
   tms
   
## "+/-" - 
   # Add One Day to a Given timeDate Object:
   GMT = timeDate(dts, zone = "GMT", FinCenter = "GMT")
   GMT
   ZUR = timeDate(dts, zone = "GMT", FinCenter = "Europe/Zurich")
   ZUR
   
## c - 
   # Concatenate and Replicate timeDate Objects:
   c(GMT[1:2], ZUR[1:2])
   c(ZUR[1:2], GMT[1:2])
   
## rep - 
   rep(ZUR[2], times = 3)
   rep(ZUR[2:3], times = 2)