What timezone scheduling usually gets wrong
Most people do timezone scheduling by leaving the draft, checking a converter, checking a second tool, then returning to the message and manually writing the result. That process makes small mistakes more likely and turns simple coordination into slow formatting work.
Context switching
People leave the thread to compare time zones, then return and rewrite everything manually.
Awkward proposals
It is easy to suggest a time that looks fine locally but is too early, too late, or on a holiday elsewhere.
Messy output
Even when the math is right, the final message often looks improvised instead of clear and professional.