Versions
| Title, Format | Label | Cat# | Country | Year | |
|---|---|---|---|---|---|
| Day One (12") | Anjunabeats | ANJ-019 | UK | 2003 | |
| Day One (12", W/Lbl, Promo) | Anjunabeats | ANJ-19 | UK | 2003 | |
| Day One (2xFile, MP3) | Anjunabeats | ANJ-019 | UK | 2003 | |
| Day One (John O'Callaghan Remix) (File, MP3) | AnjunaDigital | ANJD-019C | UK | 2004 | |
| Day One (CDr) | Anjunabeats | none | UK | 2005 | |
| Day One (CDr, Single, Car) | Anjunabeats | ACD-019 | UK | 2006 |