Date._parse does not accept nil
#1819
| Job | Run time |
|---|---|
| 5s | |
| 40s | |
| 30s | |
| 22s | |
| 1m 52s | |
| 29s | |
| 2m 1s | |
| 16s | |
| 1m 19s | |
| 21s | |
| 1m 35s | |
| 28s | |
| 15s | |
| 33s | |
| 18s | |
| 25s | |
| 1m 21s | |
| 19s | |
| 19s | |
| 1m 13s | |
| 3m 53s | |
| 24s | |
| 18s | |
| 48s | |
| 1m 15s | |
| 1m 30s | |
| 18s | |
| 32s | |
| 23m 39s |