| August 1 | Armenian | Other calendars Armenian 12 Nawasardi 1476 Aztec Pānquetzaliztli 3, 9 Ozomahtli Babylonian 17 Du'uzu, 2337 SE Balinese pawukon Luang, Pepet, Beteng, Sri, Keliwon, Was, Saniscara… | 1.00 | infobox |
| August 1 | Armenian | 12 Nawasardi 1476 | 1.00 | infobox |
| August 1 | Aztec | Pānquetzaliztli 3, 9 Ozomahtli | 1.00 | infobox |
| August 1 | Babylonian | 17 Du'uzu, 2337 SE | 1.00 | infobox |
| August 1 | Balinese pawukon | Luang, Pepet, Beteng, Sri, Keliwon, Was, Saniscara of Krulut, Ludra, Tulus, Raja | 1.00 | infobox |
| August 1 | Bengali | 17 Shrabon, BS 1433 | 1.00 | infobox |
| August 1 | Chinese | Yin Fire Goat・Girl Mansion 19 Liùyuè, Bǐngwǔnián (Dashu, 6 days until Liqiu) | 1.00 | infobox |
| August 1 | Common Era | 1 August 2026 CE | 1.00 | infobox |
| August 1 | Coptic | 25 Epip, AM 1742 | 1.00 | infobox |
| August 1 | Egyptian | 17 Choiak, 2775 NE | 1.00 | infobox |
| August 1 | Ethiopian | 25 Ḥamlē, 2018 Amätä Məhrät | 1.00 | infobox |
| August 1 | French Republican | Décade II, Quartidi de Thermidor de l'Année 234 de la République | 1.00 | infobox |
| August 1 | Gregorian | 1 August, AD 2026 | 1.00 | infobox |
| August 1 | Hebrew | 18 Av, AM 5786 | 1.00 | infobox |
| August 1 | Hindu | 5127 KY・1,872,788・Rāudra Solar: 16 Śrāvaṇa, 1948 SE Lunisolar: Tr̥tīyā, Kṛishna pakṣa of Āṣāḍha, 2083 VE | 1.00 | infobox |
| August 1 | Icelandic | Laugardagur, 7 Heyannir 2026 | 1.00 | infobox |
| August 1 | Islamic | 16 Safar, AH 1448 (using tabular method) | 1.00 | infobox |
| August 1 | ISO week date | 2026-W31-6 | 1.00 | infobox |
| August 1 | Japanese | 19 Minazuki, Reiwa 8 (Taisho, 6 days until Risshū) | 1.00 | infobox |
| August 1 | Julian | 19 July, AD 2026 (AM 7534) | 1.00 | infobox |
| August 1 | Julian day | 2461254 | 1.00 | infobox |
| August 1 | Maya | 13.0.13.14.11 4 Yaxkin, 9 Chuen | 1.00 | infobox |
| August 1 | Roman | ante diem XIV Kalendas Augustas, MMDCCLXXIX AUC | 1.00 | infobox |
| August 1 | Solar Hijri | 10 Mordad, SH 1405 | 1.00 | infobox |
| August 1 | is a | 213th day of the year | 0.90 | text |
