# Utility modules

These are various utility modules for other HackerBase libraries.

## util-time [module]

    (import util-time)

Compatibility module for the differences between chicken scheme
version 5.2 and earlier and 5.3 and on.

### current-util-milliseconds [procedure]

    (current-util-milliseconds)

Returns the number of milliseconds since process startup.

Under chicken scheme <5.3 it uses ```current-milliseconds``` and for
chicken scheme >=5.3 it uses ```current-process-milliseconds```.

Without this module compilation with ```current-milliseconds```
results in warnings on chicken scheme >=5.3 and compilation under
chicken scheme <5.3 results in error with
```current-process-milliseconds```.

### seconds->iso-date-string [procedure]

    (seconds->iso-date-string . args)

Converts given seconds to ISO date string YYYY-MM-DD. Defaults to ```(current-seconds)```.

### today/iso [procedure]

    (today/iso)

Returns today as ISO date string YYYY-MM-DD.