“Tithi” can mean different things, so the answer depends on what you are asking:

1. If you mean lunar dates (1st tithi, 2nd tithi of a month):

- Spiritually, sāmānya jñān (ordinary knowledge) of “today is 1st tithi” or “today is 2nd tithi” is not different in quality of knowledge. - It is the same type of knowledge, just about different objects (different days). - So, from the Jain view of jñān-tattva, the kind of knowledge is not changing, only the viṣay (object) changes.

1. If you mean something like “one tithi’s worth of time vs two tithi’s worth of time” in the technical sense of Jain time-units and omniscience (keval-jñān):

- For kevalī Bhagwān, there is no difference – they know all past, present and future completely; so 1 tithi or 2 tithi makes no difference to their knowledge. - For ordinary souls (like us), we never have such exact time-bound complete knowledge anyway, so Jain texts don’t usually talk of “1 tithi jñān” vs “2 tithi jñān” as distinct spiritual levels.

1. If you are referring to some specific pravachan, granth, or tradition (for example, a statement like “falānā devtā ko ek tithi ka jñān hotā hai, falānā ko do tithi ka”), then that is a special/contextual usage, not a standard tattva-category like mati-jñān, śrut-jñān, avadhi-jñān, etc.

Right now your question is a bit short, so I have answered in general Jain-tattva terms:

• Type of knowledge (mati, śrut, avadhi, keval, etc.) is what really matters.
• “1 tithi” vs “2 tithi” is only a difference of extent/object, not of spiritual category of jñān.

If you can share the exact line or context where you heard “1 tithi ka gyan / 2 tithi ka gyan”, the explanation can be made more precise according to that Jain text or pravachan.