n,sec,gmtdate
1,0,1970-01-01
2,1,1970-01-01
3,10,1970-01-01
4,100,1970-01-01
5,1000,1970-01-01
6,10000,1970-01-01
7,100000,1970-01-02
8,1000000,1970-01-12
9,10000000,1970-04-26
10,100000000,1973-03-03
11,1000000000,2001-09-09
12,1432036180,2015-05-19
13,1500000000,2017-07-14
14,2000000000,2033-05-18
15,2000000000.00000000,2033-05-18
16,2000000000.00000000,2033-05-18
17,2000000000.00000000,2033-05-18
18,2000000000.12339997,2033-05-18
19,2000000000.12345600,2033-05-18
20,2000000000.99900007,2033-05-18
21,2000000000.99999905,2033-05-18
22,2000000001.00000000,2033-05-18
23,,
24,x,x
25,123x,123x
