| Measure elapsed time |  |  |
| Deadline arithmetic with Duration |  |  |
| Convert SystemTime to UNIX timestamp |  |  |
| Benchmark a closure with Instant |  |  |
| Perform checked date and time calculations |  |  |
| Convert a local time to another timezone |  |  |
| Examine the date and time |  |  |
| Convert date to UNIX timestamp and vice versa |  |  |
| Display formatted date and time |  |  |
| Parse string into DateTime struct |  |  |