"Kdy jste ten stůl rezervoval?"

Translation: When did you reserve the table?

[ion1122]

Which does this mean?
1. At what time did you call to make the reservation?
2. For what time is the table reserved?

[endless_sleeper]

No. 1 is correct.

2) would be: Na kdy jste ten stůl rezervoval? or more commonly Na kdy máte tu rezervaci?