| A00AAF | Prints details of the NAG Fortran Library implementation |
| X05AAF | Return date and time as an array of integers |
| X05ABF | Convert array of integers representing date and time to character string |
| X05ACF | Compare two character strings representing date and time |
| X05BAF | Return the CPU time |
| R1: | Machine-dependent constants | (16 routines) |
| R2: | Error checking (e.g., check monotonicity) | (0 routines) |
| R3: | Error handling | (3 routines) |
| R4: | Documentation retrieval | (0 routines) |