# A prt:        12 × 1
# Partitioning: [12] rows
   x
   <dttm>
 1 2016-01-01 12:34:57
 2 2016-01-01 12:34:58
 3 2016-01-01 12:34:59
 4 2016-01-01 12:35:00
 5 2016-01-01 12:35:01
 6 2016-01-01 12:35:02
 7 2016-01-01 12:35:03
 8 2016-01-01 12:35:04
 9 2016-01-01 12:35:05
10 2016-01-01 12:35:06
11 2016-01-01 12:35:07
12 2016-01-01 12:35:08
