24 Oras is the flagship national network news broadcast of GMA Network

GMA Network

GMA Network is a major commercial television & radio network in the Philippines. GMA Network is owned by GMA Network, Inc. a publicly listed company...

. A nightly national newscast which airs in the Philippines

Philippines

The Philippines , officially known as the Republic of the Philippines , is a country in Southeast Asia in the western Pacific Ocean. To its north across the Luzon Strait lies Taiwan. West across the South China Sea sits Vietnam...

 and worldwide via GMA Pinoy TV

GMA Pinoy TV

GMA Pinoy TV, incorporated in February 2004 by GMA Network and its subsidiaries GMA International & GMA Worldwide and launched in 2005 primarily in Japan and USA, is a 24-hour international Filipino television station. The channel is targeted towards Overseas Filipino and their families in the...

. It is aired Weeknights at 6:30-8:00 PM, Saturdays at 5:15 to 6:00 PM and Sundays at 6:00 to 6:45 PM (PST

Philippine Standard Time

Philippine Standard Time , also known as Philippine Time , is the official name for the time in the Philippines. The country only has one time zone, the UTC+08:00 time zone. The country used the daylight saving time for a short time...

). The newscast is simulcasted on radio

Radio

Radio is the transmission of signals through free space by modulation of electromagnetic waves with frequencies below those of visible light. Electromagnetic radiation travels by means of oscillating electromagnetic fields that pass through the air and the vacuum of space...

 thru Super Radyo DZBB 594 kHz in Mega Manila

Mega Manila

Mega Manila is the term used for the regions of Central Luzon, CALABARZON, MIMAROPA and Metro Manila. It is frequently used in the press, advertising, television and radio...

 and several of its regional Super Radyo stations nationwide.
24 Oras premiered on March 15, 2004 at 6:15pm, replacing Frontpage: Ulat ni Mel Tiangco.