{"conversationCode":"252-018","tapeNumber":252,"conversationNumber":18,"identifier":"37-wht-conversation-252-018","startDateTime":"1971-04-28T20:47:00.000Z","endDateTime":"1971-04-28T20:49:00.000Z","startDate":"28-Apr-1971","startTime":"4:47 PM","endDate":"28-Apr-1971","endTime":"4:49 PM","dateCertainty":"certain","timeCertainty":"estimated","participants":"Nixon, Richard M. (President); [Unknown person(s)];","description":"On April 28, 1971, President Richard M. Nixon and unknown person(s) met in the President's office in the Old Executive Office Building at an unknown time between 4:47 pm and 4:49 pm. The Old Executive Office Building taping system captured this recording, which is known as Conversation 252-018 of the White House Tapes.","locationCode":"EOB","recordingDevice":"Old Executive Office Building","latitudeEstimated":38.897567,"longitudeEstimated":-77.039147,"chronCode":1,"chronRelease":"First Chronological Release","chronReleaseDate":"5-Oct-1999","aogpRelease":null,"aogpSegment":null,"lastModified":"2015-07-27T17:04:10.235Z","findingAid":"Conversation No. 252-18\n\nDate: April 28, 1971\nTime: Unknown between 4:47 pm and 4:49 pm\nLocation: Executive Office Building\n\nThe President talked with an unknown person\n\n     Call to unknown man\n\n     Schedule","filename":["252-018-splice.mp3"],"tapeStart":"00:43:01","tapeEnd":"00:43:21","participantsList":["Nixon, Richard M. (President)","[Unknown person(s)]"],"prevCode":"252-017","nextCode":"252-019","tapeTranscriptFile":"252a.mp3,252b.mp3","transcript":[{"start":2578.46,"end":2583.51,"text":"Uh, don't worry."},{"start":2584.39,"end":2591.47,"text":"You can call back later."},{"start":2595.09,"end":2608.19,"text":"Anything you want to go over with me before I... Yeah."}],"transcriptBoundary":{"start":2581,"end":2601,"startMethod":"llm-alignment","endMethod":"llm-alignment"},"transcriptConfidence":"medium","transcriptSource":"bigtape","aiSummary":{"text":"President Nixon consulted with an unknown individual regarding the final details of his upcoming schedule. The brief discussion focused on reviewing essential matters before the President proceeded with his itinerary. No definitive policy decisions were reached during this short administrative exchange.","topics":["Presidential schedule","White House logistics","Administration","Time management"],"generatedAt":"2026-04-06T11:50:24.833Z"},"topicSlugs":["presidential-schedule","white-house-logistics","administration","time-management"],"audioDurationSec":23,"audioFiles":[{"file":"252-018-splice.mp3","bytes":367422,"durationSec":22.99,"bitrate":127867,"missing":false}],"audioIsShared":false,"audioProbedAt":"2026-09-18T14:10:24.832Z","originalFilename":["252a.mp3","252b.mp3"],"spliceSource":{"spliceType":"bigtape","sourceFiles":["252a.mp3"],"cutStart":2579.5,"cutEnd":2602.5,"adjustedStart":2579.5,"adjustedEnd":2602.5,"boundaryMethod":"llm-alignment","confidence":"medium","splicedAt":"2026-09-18T14:10:24.832Z"},"transcriptPrev":{"segments":2,"replacedAt":"2026-09-18T14:11:38.120Z"},"audio":["https://nixon.nyc3.digitaloceanspaces.com/audio/252-018-splice.mp3"],"url":"https://www.easynixon.org/tapes/252-018","nixonLibraryUrl":"https://www.nixonlibrary.gov/white-house-tapes/252/conversation-252-018","license":"Public domain (U.S. Government work). AI-generated fields (transcript, aiSummary) are provided as-is without warranty."}