Spanish phrase
¿Desde cuándo se usa ~?
Meaning
Since when has ___ been used?
When to use it
Asks when something began to be used. Neutral conversational question used to check the start time of an item, method, or practice.
Example dialogue
¿Desde cuándo se usa la tarjeta en vez del efectivo?
Since when has the card been used instead of cash?
Ya hace tres años, pero no en todos los comercios.
It's been three years already, but not in all stores.