If you schedule things across more than one platform, it’s important to make sure that your time zones are accurate.
They need to all be the same across the board, and you need to make sure the time zone reflects where you are.
It sounds elementary, but it’s important to check! If you have a blog post scheduled to publish at 10 AM, and a social media update linking to that blog goes out at 8 AM that day, that link won’t work for two hours. Which could be pretty awkward.