You can see some satellites during daylight. It’s rare and depends on specific conditions, but happens. Satellites are most visible when they reflect sunlight, which typically happens during dawn or dusk when the sky is dim but the satellite is still illuminated by the sun. During full daylight, the bright sky usually washes out the faint light reflected by satellites, making them difficult to see. However, some large communication satellites (e.g., Iridium satellites) can be visible during the day if they’re at the right angle.