diff --git a/talks/a928d92c-2d28-4525-856e-89688cf67c46/meta.yaml b/talks/a928d92c-2d28-4525-856e-89688cf67c46/meta.yaml
index 9a8ce919d01a6d7646e0fc04dc68cd3a91ef77b6..b209336be571af5726b265ded779e65922f18d10 100644
--- a/talks/a928d92c-2d28-4525-856e-89688cf67c46/meta.yaml
+++ b/talks/a928d92c-2d28-4525-856e-89688cf67c46/meta.yaml
@@ -1,10 +1,10 @@
 day: 5
 duration: 60
-end: 2023-09-09 18:00:00+02:00
+end: 2023-09-09 20:00:00+02:00
 format: conference
 key: a928d92c-2d28-4525-856e-89688cf67c46
-room: room2
-start: 2023-09-09 17:00:00+02:00
+room: room1
+start: 2023-09-09 19:00:00+02:00
 tags: []
 text: "[versione in ITALIANO]  \n\nPresentazione di  \n\n1/ [Assodev-Marsnet](https://www.marsnet.org)\
   \  \ntecnologia digitale libera ed etica per associazioni e collettivi in Francia\
@@ -59,6 +59,6 @@ text: "[versione in ITALIANO]  \n\nPresentazione di  \n\n1/ [Assodev-Marsnet](ht
   \ colleagues with ERASMUS mobility adult education - sharing of Assodev-Marsnet\
   \ experience\n\nwho: *Chatons Marsnet* from Marseilles, France  \n(flo, rv, francou,\
   \ remy, frantz)\n\nlanguage: English"
-time: '17:00'
+time: '19:00'
 title: Hosting etico di alternative ai giganti del web/GAFAM e software libero in
   Europa
diff --git a/talks/ad05e0c5-6a39-4d57-8a89-2a08de067785/meta.yaml b/talks/ad05e0c5-6a39-4d57-8a89-2a08de067785/meta.yaml
index af4944e60698586971944ce037c2afc79279c04a..34e81e4fa7aba4a4fba4be8e6aec8e46f32576ef 100644
--- a/talks/ad05e0c5-6a39-4d57-8a89-2a08de067785/meta.yaml
+++ b/talks/ad05e0c5-6a39-4d57-8a89-2a08de067785/meta.yaml
@@ -1,10 +1,10 @@
 day: 5
 duration: 60
-end: 2023-09-10 00:00:00+02:00
+end: 2023-09-09 23:30:00+02:00
 format: conference
 key: ad05e0c5-6a39-4d57-8a89-2a08de067785
 room: room1
-start: 2023-09-09 23:00:00+02:00
+start: 2023-09-09 22:30:00+02:00
 tags: []
 text: "Documentario sulla storia di CLODO\n\n[https://machinesinflames.com/](https://machinesinflames.com/)\
   \  \n[https://iteroni.com/watch?v=qGVMu5OPu7E](https://iteroni.com/watch?v=qGVMu5OPu7E)\n\
@@ -21,5 +21,5 @@ text: "Documentario sulla storia di CLODO\n\n[https://machinesinflames.com/](htt
   \  \n[https://not.neroeditions.com/morte-alla-macchina/](https://not.neroeditions.com/morte-alla-macchina/)\
   \  \n[https://archive.org/details/memory-loss-clodo-zine/mode/2up](https://archive.org/details/memory-loss-clodo-zine/mode/2up)\
   \  \n[https://en.wikipedia.org/wiki/CLODO](https://en.wikipedia.org/wiki/CLODO)"
-time: '23:00'
+time: '22:30'
 title: Machines in flames [proiezione]
diff --git a/talks/cfee0229-2afa-497d-a96a-014a536dda7d/meta.yaml b/talks/cfee0229-2afa-497d-a96a-014a536dda7d/meta.yaml
index c7ae4f4ffc4531fedb9a23ba6ead28200b345fbb..2b5ad993dead1f72fcb2c999d9d8e5d0420d38da 100644
--- a/talks/cfee0229-2afa-497d-a96a-014a536dda7d/meta.yaml
+++ b/talks/cfee0229-2afa-497d-a96a-014a536dda7d/meta.yaml
@@ -1,11 +1,11 @@
 day: 5
-duration: 120
-end: 2023-09-10 02:00:00+02:00
+duration: 90
+end: 2023-09-10 01:00:00+02:00
 format: conference
 key: cfee0229-2afa-497d-a96a-014a536dda7d
 room: arena
-start: 2023-09-10 00:00:00+02:00
+start: 2023-09-09 23:30:00+02:00
 tags: []
 text: ''
-time: 00:00
+time: '23:30'
 title: Ten minutes talk