SELECT sys.format_time(NULL);
sys.format_time(NULL)
NULL
SELECT sys.format_time(1);
sys.format_time(1)
1 ps
SELECT sys.format_time(999);
sys.format_time(999)
999 ps
SELECT sys.format_time(1000);
sys.format_time(1000)
1.00 ns
SELECT sys.format_time(999999);
sys.format_time(999999)
1000.00 ns
SELECT sys.format_time(1000000);
sys.format_time(1000000)
1.00 us
SELECT sys.format_time(999999999);
sys.format_time(999999999)
1000.00 us
SELECT sys.format_time(1000000000);
sys.format_time(1000000000)
1.00 ms
SELECT sys.format_time(999999999999);
sys.format_time(999999999999)
1000.00 ms
SELECT sys.format_time(1000000000000);
sys.format_time(1000000000000)
1.00 s
SELECT sys.format_time(59999999999999);
sys.format_time(59999999999999)
60.00 s
SELECT sys.format_time(60000000000000);
sys.format_time(60000000000000)
1.00 m
SELECT sys.format_time(3599999999999999);
sys.format_time(3599999999999999)
60.00 m
SELECT sys.format_time(3600000000000000);
sys.format_time(3600000000000000)
1.00 h
SELECT sys.format_time(86399999999999988);
sys.format_time(86399999999999988)
24.00 h
SELECT sys.format_time(86400000000000000);
sys.format_time(86400000000000000)
1.00 d
SELECT sys.format_time(604799999999999888);
sys.format_time(604799999999999888)
7.00 d
SELECT sys.format_time(604800000000000000);
sys.format_time(604800000000000000)
1.00 w
SELECT sys.format_time(2389472398472389748237429837423984728374);
sys.format_time(2389472398472389748237429837423984728374)
3950847219696411300000.00 w