Question:
If someone davened shacharit without a minyan on a fast day like Shiva Asar B’Tammuz and forgot to say selichot then, can he say it in the afternoon?
Thank you.
Answer:
Yes selichos can be said in the afternoon. However when a person says selichos without a minyan, he doesn’t say the 13 middos of H-shem, H-shem. Additionally he doesn’t say any mention of the 13 middos, therefore he skips the words “וזכור לנו היום ברית שלש עשרה” .
Best wishes
Sources:
Elef Hamagen 581-24, although he is referring to selichos of Elul, that the whole day is yimei rachamim, the idea is the same with regard to a fast day, since it is a fast, it is a day of rachamim. Poskim