Apollo 11 EVA — annotated master timeline

The minute-by-minute chronology of the first moonwalk, each step tagged with ground elapsed time (GET) and linked to the wiki concept that covers it. Built primarily from the verbatim air-to-ground transcript (every GET below is a real tag in that source), with durations from the Mission Report (§4.12, §11) and the Lunar Sample Information Catalogue.

Reading the clock. GET is shown here as HHH:MM:SS (hours:minutes:seconds since launch). The transcript tags each line as DD HH MM SS (days/hours/min/sec); the EVA falls on the 109th–111th hour, i.e. 04 13–04 15. To convert, add DD × 24: 04 13 24 48 → 4×24 + 13 = 109:24:48.

Before the walk

• 102:45:40 GET — landing. “Houston, Tranquility Base here. THE EAGLE HAS LANDED.” See powered descent and landing.
• The crew elected to start the EVA early, before the scheduled rest period, because adaptation to 1/6 g was “very rapid and very pleasant.” EVA prep then ran about an hour long — see Apollo 11 EVA. Cabin depressurization (~30 min) and opening the forward hatch put Armstrong on the porch at the time below.

The EVA (≈109:19 – 111:39 GET; ~2½ hours)

GET	Event	In the record	Concept
109:19:16	Armstrong on the porch	”Houston, I’m on the porch.”	EVA · EVA equipment
109:22:00	First live TV picture	”We’re getting a picture on the TV” — upside down at first, then righted; “we can see you coming down the ladder now.”	TV broadcast & communications
109:23:43	At foot of ladder; announces first step	”I’m going to step off the LM now.”	EVA
109:24:48	First step on the Moon	”THAT’S ONE SMALL STEP FOR (A) MAN, ONE GIANT LEAP FOR MANKIND.”	EVA
109:37:08	Contingency sample bagged	”Contingency sample is in the pocket.” — the first sample of the Moon	Sample collection · sampling tools
109:43:24	Aldrin on the surface — both crew out	”Magnificent desolation.”	EVA · mobility
109:52:40	Plaque unveiled and read	”…We came in peace for all mankind.”	Ceremonial activities
109:58:32	Solar Wind Composition foil deployed	”I’ll start working on the solar wind.”	Solar Wind Composition
110:09:43	U.S. flag raised	”They’ve got the flag up now and you can see the stars and stripes on the lunar surface.”	Ceremonial activities
110:16:09	Call from President Nixon	”…the most historic telephone call ever made… for one priceless moment… all the people on this Earth are truly one.”	Ceremonial activities · TV broadcast
110:35:56	Bulk sample sealed	”Bulk sample is just being sealed.”	Sample collection
111:02:08	Passive Seismic Experiment aligned	”I have the seismic experiment flipped over now, and I’m aligning it…” (trouble centering the level bubble)	Passive Seismic · EASEP
111:03:57	Laser Ranging Retroreflector installed	”The laser reflector is installed and the bubble is leveled and the alignment appears to be good.”	Laser Ranging Retroreflector · EASEP
111:12:32	PSE uncaged — returning data	”The passive seismic experiment has been uncaged and we’re observing short period oscillations in it.”	Passive Seismic
111:16:13	Documented sample: two core tubes + SWC retrieval	”…get two core tubes and the solar wind experiment.” Armstrong’s farthest traverse — a jog to a crater rim — falls in this late stretch.	Sample collection · field geology
111:26:22	Solar Wind foil rolled up	”Did you get that solar wind rolled up there, Buzz?”	Solar Wind Composition
111:39:13	Hatch closed and latched — EVA ends	”The hatch is closed and latched, and verified secure.”	EVA

After the walk

• Equipment jettison. After repressurizing, the crew threw the PLSS backpacks and other gear back out the hatch. Houston: “We observed your equipment jettison on the TV, and the passive seismic experiment recorded shocks when each PLSS hit the surface” — an unplanned first seismic calibration. See Passive Seismic and EVA equipment.
• A poor rest period (cold, light-filled cabin), then lunar liftoff at 124:22:00 GET closed the ~21.6-hour surface stay — see Lunar ascent and rendezvous.

Durations and planned-vs-actual

• Porch to hatch-close: ~2 h 20 min. Surface exploration: ~2 h 14 min (Sample Catalogue). Total EVA (depress→repress): the Mission Report rounds it to the allotted ~2½ hours, under a Sun that climbed only from ~14.5° to 16°.
• The Lunar Surface Operations Plan priority order was: window photography → contingency sample → EVA evaluation → LM inspection → bulk sample → experiments → documented sample. The actual run followed that science spine (contingency 109:37 → bulk 110:36 → EASEP 111:02–111:12 → documented/core 111:16–111:26), but the symbolic acts were woven into the middle — plaque 109:52, flag 110:09, the President’s call 110:16 — between the contingency and bulk samples.