Can I install Say the Time on my other computer(s)?

When you install Say the Time, you agree to its End-User License Agreement (EULA). Here is a part of the EULA for Say the Time:

STANDARD LICENSE

SINGLE COMPUTER USE. For every valid license you
have acquired for the SOFTWARE PRODUCT, you may
install a single copy of the SOFTWARE PRODUCT on
a single computer.

Therefore, you can only use Say the Time on additional computers if you have purchased additional licenses. You can purchase licenses of Say the Time through the Provenio Store.