My shop currently offers domestic shipping and international shipping. As the shipping times differ greatly between the two, I want to be able to add some short text so the customer can see the estimated shipping time when they're at the shipping page during check out.
Currently, the default text simply shows "free shipping" for domestic addresses and I'd like this line to show "free shipping (3-5 working days)" instead. Similarly, for international orders I'd like to append the default text with estimates of shipping time. Where can I change this language please? I've already looked under the Settings>Checkout>Language page but don't seem to find anything relevant there.
In the future, I'll also be adding more options under domestic and international (eg. express shipping) so being able to show the shipping time would be really helpful.