1. **Applicable appeal period:** The company is in Greece, so the appeal period is 30 days from service of the judgment that ends the proceedings. **Article 518(1) CCP**. ([current text of Article 518](https://deep-law.io/nomothesia-kodikas-politikis-dikonomias))

2. **Start counting:** The period starts the day after service, so counting begins Friday **17 July 2026**. **Article 144(1) CCP**. ([Article 144(1)](https://www.protodikeio-peir.gr/?p=9643))

3. **Count the days:** 17–31 July contributes 15 days. The period under Article 518(1) is one of the periods for which **1–31 August is not counted**, under **Article 147(2) CCP**. The remaining 15 days run from 1–15 September, making **Tuesday 15 September 2026** the 30th day. ([Article 147(2)](https://www.nomoskopio.gr/kpold_147.php))

4. **Expiry:** The deadline expires at 7 p.m. on the last day. Because 15 September 2026 is not a statutory holiday, the deadline is **15 September 2026**. **Article 144(1) CCP**.

RESULT: deadline = 2026-09-15; rule = Articles 518(1), 147(2), 144(1) CCP