test intervals
- test nanoseconds
1980-12-12 12:12:12.123456789
1980-12-12 12:12:12.123456700
1930-12-12 12:12:12.123456789
1930-12-12 12:12:12.123456700
2220-12-12 12:12:12.123456789
2220-12-12 12:12:12.123456700
- test microseconds
1980-12-12 12:12:12.123456
1980-12-12 12:12:12.123400
1980-12-12 12:12:12.123456
1930-12-12 12:12:12.123456
1930-12-12 12:12:12.123400
1930-12-12 12:12:12.123456
2220-12-12 12:12:12.123456
2220-12-12 12:12:12.123400
2220-12-12 12:12:12.123456
- test milliseconds
1980-12-12 12:12:12.123
1980-12-12 12:12:12.120
1980-12-12 12:12:12.123
1930-12-12 12:12:12.123
1930-12-12 12:12:12.120
1930-12-12 12:12:12.123
2220-12-12 12:12:12.123
2220-12-12 12:12:12.120
2220-12-12 12:12:12.123
test add[...]seconds()
- test nanoseconds
1980-12-12 12:12:12.123456790
1980-12-12 12:12:12.123456701
1930-12-12 12:12:12.123456788
1930-12-12 12:12:12.123456699
2220-12-12 12:12:12.123456790
2220-12-12 12:12:12.123456701
- test microseconds
1980-12-12 12:12:12.123456001
1980-12-12 12:12:12.123400001
1980-12-12 12:12:12.123456781
1930-12-12 12:12:12.123455999
1930-12-12 12:12:12.123399999
1930-12-12 12:12:12.123456779
2220-12-12 12:12:12.123456001
2220-12-12 12:12:12.123400001
2220-12-12 12:12:12.123456781
- test milliseconds
1980-12-12 12:12:12.123000001
1980-12-12 12:12:12.120000001
1980-12-12 12:12:12.123456001
1930-12-12 12:12:12.122999999
1930-12-12 12:12:12.119999999
1930-12-12 12:12:12.123455999
2220-12-12 12:12:12.123000001
2220-12-12 12:12:12.120000001
2220-12-12 12:12:12.123456001