How do I get the block time to show on a different line?
Just pushed the update into NostrGram so you can get the latest Bitcoin block height, index and time using these variables (both in your note text and/or in your note signature):

Block Index: 1678825424
Block Height: 780826
Block Time: 2023-03-14 20:23:44
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Developing https://nostrgram.co/ #Bitcoin
Discussion
Just put it on a different line:
Block Time
2023-03-14 21:09:35
Test
LoL! Didn't work because I didn't have "replies" checked. Trying again. Test!
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Block Height: 780829 Block Time: 2023-03-14 21:09:35
#[2] Not sure how to make multiple lines in my sig. I tried hitting enter and ctrl-enter and I also copied & pasted from a notepad. Keeps putting it on one line.
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Block Height: 780829 Block Time: 2023-03-14 21:09:35