What does WWVH stand for?

What does WWVH mean?

WWVH	World Wide Vacation Homes Business » Firms
WWVH	Standard Time And Frequency Station, 2.5 Mhz, 5 Mhz, 10 Mhz, 15 Mhz, Kekaha, Kauai, Hawaii Medical » Laboratory
WWVH	Standard Time And Frequency Station, 2.5 Mhz, 5 Mhz, 10 Mhz, 15 Mhz, Kekaha, Kauai, Hawaii Academic & Science » Amateur Radio
WWVH	Standard Time And Frequency Station, 2.5 MHz, 5 MHz, 10 MHz, 15 MHz, Kekaha, Kauai, Hawaii Community » Radio Stations