The Owdyn weekly recap email, reporting "Money In," "Money Out," and "Safe to Spend (next 30 days)", currently calculates its weekly period starting on a Sunday. The recap received today (20 Sep 2026) covered the week of 13 Sep – 19 Sep, which is a Sunday-to-Saturday range. In New Zealand, weeks conventionally start on Monday.
A Monday-Sunday week (e.g. 14 Sep – 20 Sep in this case) would better match how most NZ users think about and plan their week, and would align the recap with local calendar conventions rather than a US-style Sunday-start week.