# 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
