BEGIN:VCALENDAR
VERSION:2.0
PRODID:Beijing 2019
CALSCALE:GREGORIAN
BEGIN:VEVENT
DTSTAMP:20260403T185745Z
UID:69702b66-091f-44a5-8af3-03bbd61e141f
DTSTART:20190703T051000Z
DTEND:20190703T054000Z
LOCATION:Meeting Room 1
SUMMARY:Registration (PostgresConf Organizers)
URL:https://www.postgresconf.org/conferences/Beijing/program/proposals/1191
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260403T185745Z
UID:2aafa4c4-d71c-454e-8a6e-ecb460488179
DTSTART:20190703T060000Z
DTEND:20190703T061000Z
LOCATION:Meeting Room 1
SUMMARY:PostgreSQL Association Meeting (Jian Miao)
URL:https://www.postgresconf.org/conferences/Beijing/program/proposals/1192
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260403T185745Z
UID:798e274a-aac6-4c12-8237-e4bf36ba2065
DTSTART:20190703T061000Z
DTEND:20190703T062000Z
LOCATION:Meeting Room 1
SUMMARY:Awarding new members of the International Consultant Committee (Jos
 hua Drake)
URL:https://www.postgresconf.org/conferences/Beijing/program/proposals/1193
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260403T185745Z
UID:07df62c8-a117-4890-8193-fab430efae03
DTSTART:20190703T062000Z
DTEND:20190703T074000Z
LOCATION:Meeting Room 1
SUMMARY:International Consultant Committee Annual Meeting
URL:https://www.postgresconf.org/conferences/Beijing/program/proposals/1194
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260403T185745Z
UID:5a460aba-1464-4810-ad51-a9803ec5b750
DTSTART:20190703T074000Z
DTEND:20190703T090000Z
LOCATION:Meeting Room 1
SUMMARY:China PostgreSQL Association Internal Meeting
URL:https://www.postgresconf.org/conferences/Beijing/program/proposals/1195
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260403T185745Z
UID:1dcfa44a-20bc-45dc-af70-b1e0d542e95d
DTSTART:20190704T010000Z
DTEND:20190704T011000Z
LOCATION:Main JINGGE HALL
SUMMARY:PostgresConf Beijing Opening Ceremony (PostgresConf Organizers)
URL:https://www.postgresconf.org/conferences/Beijing/program/proposals/1196
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260403T185745Z
UID:65f8ef44-0d42-4ffe-b08a-e53209347fcb
DTSTART:20190704T011000Z
DTEND:20190704T012000Z
LOCATION:Main JINGGE HALL
SUMMARY:Speech by the officer of the Ministry of Industry and Information T
 echnology (Officer Representative)
URL:https://www.postgresconf.org/conferences/Beijing/program/proposals/1197
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260403T185745Z
UID:df54999f-5225-4530-8550-493fcf316b42
DTSTART:20190704T012000Z
DTEND:20190704T014000Z
LOCATION:Main JINGGE HALL
SUMMARY:Open Source Topic (Guangnan Ni)
URL:https://www.postgresconf.org/conferences/Beijing/program/proposals/1199
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260403T185745Z
UID:94983a9c-ac77-443a-9d78-54448758f9ee
DTSTART:20190704T015000Z
DTEND:20190704T023000Z
LOCATION:Main JINGGE HALL
SUMMARY:PG Annual Technology Awards Ceremony (PostgresConf Organizers)
URL:https://www.postgresconf.org/conferences/Beijing/program/proposals/1200
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260403T185745Z
UID:23169150-9e57-4523-96ef-271170729d92
DTSTART:20190704T023000Z
DTEND:20190704T031000Z
LOCATION:Main JINGGE HALL
SUMMARY: Postgres: The World's Database (Joshua D. Drake)
URL:https://www.postgresconf.org/conferences/Beijing/program/proposals/1201
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260403T185745Z
UID:b19aaad7-f51b-40bb-b727-aa0f6b24ed97
DTSTART:20190704T032000Z
DTEND:20190704T040000Z
LOCATION:Main JINGGE HALL
SUMMARY:Alibaba Cloud  & Database (Fei Fei Li)
URL:https://www.postgresconf.org/conferences/Beijing/program/proposals/1202
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260403T185745Z
UID:869cd0a0-be8c-4a2c-a255-533d74f04c1c
DTSTART:20190704T041000Z
DTEND:20190704T045000Z
LOCATION:Main JINGGE HALL
SUMMARY:Lunch Break (PostgresConf Organizers)
URL:https://www.postgresconf.org/conferences/Beijing/program/proposals/1203
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260403T185745Z
UID:5bd63188-684f-45c1-bdb8-01f514f26269
DTSTART:20190704T053000Z
DTEND:20190704T061000Z
LOCATION:Main JINGGE HALL
SUMMARY:PostgreSQL Technology (Xiao Jun Zheng)
URL:https://www.postgresconf.org/conferences/Beijing/program/proposals/1210
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260403T185745Z
UID:0269d6ca-f662-41d3-8d64-116cf85246ab
DTSTART:20190704T061000Z
DTEND:20190704T065000Z
LOCATION:Main JINGGE HALL
SUMMARY:PostgreSQL in Inspur (Lei Jun Hu)
URL:https://www.postgresconf.org/conferences/Beijing/program/proposals/1211
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260403T185745Z
UID:d41f4bec-a16f-4956-983f-d6c93105d920
DTSTART:20190704T065000Z
DTEND:20190704T071000Z
LOCATION:Main JINGGE HALL
SUMMARY:Coffee Break (PostgresConf Organizers)
URL:https://www.postgresconf.org/conferences/Beijing/program/proposals/1212
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260403T185745Z
UID:0fa94c54-eb9e-4988-a907-f6340e08f7b4
DTSTART:20190704T071000Z
DTEND:20190704T075000Z
LOCATION:Main JINGGE HALL
SUMMARY:PostgreSQL User Group (Shao Cong Xiao)
URL:https://www.postgresconf.org/conferences/Beijing/program/proposals/1213
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260403T185745Z
UID:dd5c700a-3722-46aa-8efd-c309fadae79b
DTSTART:20190704T075000Z
DTEND:20190704T083000Z
LOCATION:Main JINGGE HALL
SUMMARY:Database in Pingan (Yang Wang)
URL:https://www.postgresconf.org/conferences/Beijing/program/proposals/1214
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260403T185745Z
UID:4e3272d5-86e9-4234-ad6d-4f1f0336942f
DTSTART:20190704T083000Z
DTEND:20190704T091000Z
LOCATION:Main JINGGE HALL
SUMMARY:Scalable PostgreSQL in Tantan (Wen Sheng Zhang)
URL:https://www.postgresconf.org/conferences/Beijing/program/proposals/1215
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260403T185745Z
UID:5ff07193-214e-4029-a4d9-77ae27dc9c48
DTSTART:20190704T091000Z
DTEND:20190704T095000Z
LOCATION:Main JINGGE HALL
SUMMARY:Dialogue program (Joshua Drake\, Oleg Bartunov\, Xiao Jun Zheng\, G
 rant Zhou\, and Michael Meskes)
URL:https://www.postgresconf.org/conferences/Beijing/program/proposals/1217
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260403T185745Z
UID:fad261f3-6f7f-4aeb-bf86-f8ec4c52651e
DTSTART:20190704T103000Z
DTEND:20190704T115000Z
LOCATION:Main JINGGE HALL
SUMMARY:Social Event
URL:https://www.postgresconf.org/conferences/Beijing/program/proposals/1249
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260403T185745Z
UID:9d837098-4d0b-48b4-9d28-6e77980bab14
DTSTART:20190705T010000Z
DTEND:20190705T014000Z
LOCATION:JINGGE HALL TRACK 2 - PG Best Practices
SUMMARY:Kernel Analysis of PostgreSQL Parser (daming shao)
URL:https://www.postgresconf.org/conferences/Beijing/program/proposals/1216
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260403T185745Z
UID:5364582b-72aa-4619-bf4b-c0d838e1f704
DTSTART:20190705T010000Z
DTEND:20190705T014000Z
LOCATION:JINGGE HALL TRACK1 - English Track
SUMMARY:PostgreSQL v12: New feature and migration considerations (Joshua Dr
 ake)
URL:https://www.postgresconf.org/conferences/Beijing/program/proposals/1218
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260403T185745Z
UID:663b100a-3e1f-42fe-b962-79fe88836a59
DTSTART:20190705T010000Z
DTEND:20190705T014000Z
LOCATION:JINGGE HALL TRACK 3 - Ecological development of PG and its commerc
 ial
SUMMARY:Open source software compliance discussion (Ning Zhen Li)
URL:https://www.postgresconf.org/conferences/Beijing/program/proposals/1229
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260403T185745Z
UID:1c8e1691-a52c-44d0-9556-364358e5e72e
DTSTART:20190705T014000Z
DTEND:20190705T021000Z
LOCATION:JINGGE HALL TRACK1 - English Track
SUMMARY:Open Source - The Next Step  (Michael Meskes)
URL:https://www.postgresconf.org/conferences/Beijing/program/proposals/1219
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260403T185745Z
UID:0ba52ec0-55f6-4a0d-82fb-1d691325cc6b
DTSTART:20190705T014000Z
DTEND:20190705T022000Z
LOCATION:JINGGE HALL TRACK 2 - PG Best Practices
SUMMARY:Time machine for backup on PG Cloud (Yong Hui Shi)
URL:https://www.postgresconf.org/conferences/Beijing/program/proposals/1220
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260403T185745Z
UID:9e1343cf-2999-4c99-9199-13205449b894
DTSTART:20190705T021000Z
DTEND:20190705T025000Z
LOCATION:JINGGE HALL TRACK1 - English Track
SUMMARY:JSON PATH (Oleg Bartunov)
URL:https://www.postgresconf.org/conferences/Beijing/program/proposals/1198
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260403T185745Z
UID:74d3b47f-cb45-4238-99fc-2eb99e640260
DTSTART:20190705T023000Z
DTEND:20190705T031000Z
LOCATION:JINGGE HALL TRACK 3 - Ecological development of PG and its commerc
 ial
SUMMARY:Financial Industry Distributed Database Test Observation (Peng Wei 
 Ma)
URL:https://www.postgresconf.org/conferences/Beijing/program/proposals/1230
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260403T185745Z
UID:2e662a86-9290-4b7b-9fa6-a3399b7444b0
DTSTART:20190705T023000Z
DTEND:20190705T031000Z
LOCATION:JINGGE HALL TRACK 2 - PG Best Practices
SUMMARY:Oracle migration to PostgreSQL case sharing (Xian Wen Zhu)
URL:https://www.postgresconf.org/conferences/Beijing/program/proposals/1222
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260403T185745Z
UID:3be2efcb-fc08-4d5b-bf2a-90a6fac6dcd5
DTSTART:20190705T025000Z
DTEND:20190705T033000Z
LOCATION:JINGGE HALL TRACK1 - English Track
SUMMARY:A Deep Dive into PostgreSQL Indexing (Dr. Ibrar Ahmed)
URL:https://www.postgresconf.org/conferences/Beijing/program/proposals/1128
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260403T185745Z
UID:5740a27b-8f41-4635-b7c5-5500ab05f3c2
DTSTART:20190705T031000Z
DTEND:20190705T035000Z
LOCATION:JINGGE HALL TRACK 2 - PG Best Practices
SUMMARY:HugeGraph graph database technology and PostgreSQL as its storage (
 Zhang Mei Li)
URL:https://www.postgresconf.org/conferences/Beijing/program/proposals/1223
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260403T185745Z
UID:ad50c339-a31f-4a38-a113-abb9eac54ec0
DTSTART:20190705T032000Z
DTEND:20190705T040000Z
LOCATION:JINGGE HALL TRACK1 - English Track
SUMMARY:Tune your Linux Box\, not just PostgreSQL (Dr. Ibrar Ahmed)
URL:https://www.postgresconf.org/conferences/Beijing/program/proposals/1129
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260403T185745Z
UID:c691ae6e-e0f0-4222-9b3a-91f56af9ed5b
DTSTART:20190705T035000Z
DTEND:20190705T043000Z
LOCATION:JINGGE HALL TRACK1 - English Track
SUMMARY:Join Heterogeneous Databases using PostgreSQL Foreign Data Wrappers
  (Dr. Ibrar Ahmed)
URL:https://www.postgresconf.org/conferences/Beijing/program/proposals/1127
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260403T185745Z
UID:da16b6f4-3583-4890-93ce-f38574707fbd
DTSTART:20190705T053000Z
DTEND:20190705T061000Z
LOCATION:JINGGE HALL TRACK 3 - Ecological development of PG and its commerc
 ial
SUMMARY:AsiaInfo AISWare AntDB enables enterprise digitization (Ming Jun Ji
 ang)
URL:https://www.postgresconf.org/conferences/Beijing/program/proposals/1231
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260403T185745Z
UID:c0de6288-bb7c-4597-a53d-1695a6b490ab
DTSTART:20190705T053000Z
DTEND:20190705T061000Z
LOCATION:JINGGE HALL TRACK 2 - PG Best Practices
SUMMARY:Implementation of distributed aggregation in Greenplum (Chen Jinbao
 )
URL:https://www.postgresconf.org/conferences/Beijing/program/proposals/1142
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260403T185745Z
UID:22df6972-5917-43d9-afec-706251326c9e
DTSTART:20190705T054000Z
DTEND:20190705T062000Z
LOCATION:JINGGE HALL TRACK1 - English Track
SUMMARY:The future of Postgres Sharding (Ahsan Hadi)
URL:https://www.postgresconf.org/conferences/Beijing/program/proposals/1241
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260403T185745Z
UID:7f796c85-485b-4b45-a306-fd81a8783fce
DTSTART:20190705T061000Z
DTEND:20190705T065000Z
LOCATION:JINGGE HALL TRACK 3 - Ecological development of PG and its commerc
 ial
SUMMARY:Dancing with Elephants: Data Security Audit (Peng Li)
URL:https://www.postgresconf.org/conferences/Beijing/program/proposals/1234
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260403T185745Z
UID:a3b1b4ed-08ad-4327-bfa9-d3b363dd3999
DTSTART:20190705T061000Z
DTEND:20190705T065000Z
LOCATION:JINGGE HALL TRACK 2 - PG Best Practices
SUMMARY:PostgreSQL Application in IBM Cognitive Computing and Data Science 
 Services (Yong Ming Wei)
URL:https://www.postgresconf.org/conferences/Beijing/program/proposals/1224
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260403T185745Z
UID:0ed461aa-590d-40f3-93f2-85598c9eac2a
DTSTART:20190705T062000Z
DTEND:20190705T070000Z
LOCATION:JINGGE HALL TRACK1 - English Track
SUMMARY:All about PostgreSQL Replication (Asif Rehman)
URL:https://www.postgresconf.org/conferences/Beijing/program/proposals/1139
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260403T185745Z
UID:5f078209-1893-4133-a21d-d987bd17d35b
DTSTART:20190705T065000Z
DTEND:20190705T073000Z
LOCATION:JINGGE HALL TRACK 3 - Ecological development of PG and its commerc
 ial
SUMMARY:PG application practice in e-government industry (Sheng Xi Zhang)
URL:https://www.postgresconf.org/conferences/Beijing/program/proposals/1232
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260403T185745Z
UID:bb73f8d0-31f2-44c1-abdf-cb4068619da8
DTSTART:20190705T065000Z
DTEND:20190705T073000Z
LOCATION:JINGGE HALL TRACK 2 - PG Best Practices
SUMMARY:GIS - PostgreSQL  Applications in SuperMap System (Shao Jun Li)
URL:https://www.postgresconf.org/conferences/Beijing/program/proposals/1225
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260403T185745Z
UID:f4fca9bf-9693-44dd-9932-ad933c1a9582
DTSTART:20190705T065000Z
DTEND:20190705T073000Z
LOCATION:JINGGE HALL TRACK1 - English Track
SUMMARY:PostgreSQL HA with Pgpool-II  and whats been happening in Pgpool-II
  lately.... (Muhammad Usama and Ahsan Hadi)
URL:https://www.postgresconf.org/conferences/Beijing/program/proposals/1138
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260403T185745Z
UID:55f8da74-627f-4ba1-834d-8ea17eb18823
DTSTART:20190705T074000Z
DTEND:20190705T082000Z
LOCATION:JINGGE HALL TRACK1 - English Track
SUMMARY:Deep dive on SQL codes while migrating from enterprise databases to
  PostgreSQL (John Jeevakumar)
URL:https://www.postgresconf.org/conferences/Beijing/program/proposals/1156
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260403T185745Z
UID:9d90d14c-3e2d-49be-aef1-7892fe26f6ee
DTSTART:20190705T074000Z
DTEND:20190705T082000Z
LOCATION:JINGGE HALL TRACK 2 - PG Best Practices
SUMMARY:Oracle Database and Application Migration pg Best Practices (Xiu Ta
 ng)
URL:https://www.postgresconf.org/conferences/Beijing/program/proposals/1226
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260403T185745Z
UID:ee4eb5c3-77be-4ba1-bbb3-398ed4274329
DTSTART:20190705T074000Z
DTEND:20190705T082000Z
LOCATION:JINGGE HALL TRACK 3 - Ecological development of PG and its commerc
 ial
SUMMARY:Build Greenplum's low latency data pipeline (Yang Li)
URL:https://www.postgresconf.org/conferences/Beijing/program/proposals/1235
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260403T185745Z
UID:c44642b3-8404-4c80-9366-38ac5c4091f8
DTSTART:20190705T082000Z
DTEND:20190705T090000Z
LOCATION:JINGGE HALL TRACK 2 - PG Best Practices
SUMMARY:PostgreSQL execution plan exploration (Yun Jiang)
URL:https://www.postgresconf.org/conferences/Beijing/program/proposals/1227
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260403T185745Z
UID:9fae3017-841b-45df-88ff-e7cd52e5e35e
DTSTART:20190705T083000Z
DTEND:20190705T091000Z
LOCATION:JINGGE HALL TRACK1 - English Track
SUMMARY:Transparent data encryption in PostgreSQL and Integration with Key 
 management service (Insung Moon and Masahiko Sawada)
URL:https://www.postgresconf.org/conferences/Beijing/program/proposals/1221
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260403T185745Z
UID:76149cbd-1193-42bb-b42b-b067e42fe39c
DTSTART:20190705T085000Z
DTEND:20190705T093000Z
LOCATION:JINGGE HALL TRACK 3 - Ecological development of PG and its commerc
 ial
SUMMARY:POLARDB DBA Magic - Performance Insight (Yi Lin)
URL:https://www.postgresconf.org/conferences/Beijing/program/proposals/1233
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260403T185745Z
UID:3f720e6e-e060-45f3-a800-898ab97955e6
DTSTART:20190705T090000Z
DTEND:20190705T094000Z
LOCATION:JINGGE HALL TRACK 2 - PG Best Practices
SUMMARY:Application of Agricultural Insurance Big Data Technology Based on 
 Postgis (Yang Lu)
URL:https://www.postgresconf.org/conferences/Beijing/program/proposals/1228
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260403T185745Z
UID:0fa541d6-e906-4911-aac0-b211d1426982
DTSTART:20190705T100000Z
DTEND:20190705T103000Z
LOCATION:JINGGE HALL TRACK 3 - Ecological development of PG and its commerc
 ial
SUMMARY:Closing sessions (PostgresConf Organizers)
URL:https://www.postgresconf.org/conferences/Beijing/program/proposals/1251
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260403T185745Z
UID:7591cfa7-9952-48d3-b8c3-2c2989dad8e4
DTSTART:20190706T010000Z
DTEND:20190706T110000Z
LOCATION:TRAINING ROOM A
SUMMARY: Deep PostgreSQL 11 System Training Day1 (Zheng Zhong Zhou)
URL:https://www.postgresconf.org/conferences/Beijing/program/proposals/1236
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260403T185745Z
UID:33026ae8-ccc1-4bde-ad50-1f63cdf4e721
DTSTART:20190706T010000Z
DTEND:20190706T110000Z
LOCATION:TRAINING ROOM C
SUMMARY:PG High Availability Training (Bo Wei and Bin Tian)
URL:https://www.postgresconf.org/conferences/Beijing/program/proposals/1240
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260403T185745Z
UID:9302b32b-d3a4-4fa4-b89c-746017b25222
DTSTART:20190706T010000Z
DTEND:20190706T110000Z
LOCATION:TRAINING ROOM B
SUMMARY:PG Systematic Basic Training Day1 (Xian Wen Zhu)
URL:https://www.postgresconf.org/conferences/Beijing/program/proposals/1238
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260403T185745Z
UID:9ed278aa-f8a3-4938-8c9e-46648cbef38d
DTSTART:20190707T010000Z
DTEND:20190707T110000Z
LOCATION:TRAINING ROOM B
SUMMARY:PG Systematic Basic Training Day2 (Xian Wen Zhu)
URL:https://www.postgresconf.org/conferences/Beijing/program/proposals/1239
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20260403T185745Z
UID:edd9026e-b21d-4205-a4d3-7200b3df427d
DTSTART:20190707T010000Z
DTEND:20190707T110000Z
LOCATION:TRAINING ROOM A
SUMMARY: Deep PostgreSQL 11 System Training Day2 (Zheng Zhong Zhou)
URL:https://www.postgresconf.org/conferences/Beijing/program/proposals/1237
END:VEVENT
END:VCALENDAR