Since you're trying to use IANA time zone names, I don't think any of those are correct time zones for Indiana. The IANA time zones use the definition of "has

Since you're trying to use IANA time zone names, I don't think any of those are correct time zones for Indiana. The IANA time zones use the definition of "has shared the same clocks since January 1, 1970," which means if a county in Indiana has switched from Eastern to Central (or vice versa) since that point, it gets a new time zone. The Eastern Time Zone portion of Indiana has switched from not observing DST to observing DST, which means it's separate from America/New_York. Per the Wikipedia article, there's 11 IANA time zones in Indiana alone.