Calendar 2025: AI National Parks, v3, months & seasons

continuous calendar 2025 "months" (new) 

with AI illustrations in impressionist style (new)
US National Parks, 
with national holidays, 
and moon phases (new)

printable PDFs

English, with US official holidays,
and moon phases (EST), Letter size

English, Europe, A4 size

Serbian, latinica, A4 size

Serbian, ћирилица, holidays, moon phases, A4 size

English, with Holman US holidays,
and moon phases (EST), Letter size

"seasons" (winter, spring, summer, autumn/fall)

English, with US official holidays,
and moon phases (EST), Letter size

English, with US official holidays,
and moon phases (EST), LEGAL size

English, Europe, A4 size

Serbian, latinica, A4 size

Serbian, ћирилица, holidays, moon phases, A4 size

English, with Holman US holidays,
and moon phases (EST), Letter size

English, with Holman US holidays,
and moon phases (EST), LEGAL size

More 2025 Calendars

DraganSr: Calendar 2025 Seasons:
AI Classic Cars in National Parks

DraganSr: Calendar 2025: AI Serbia v3

learn: NPS.gov Homepage (U.S. National Park Service)

support: National Park Foundation | The Official Charitable Partner of the National Parks Service

explore: List of national parks of the United States - Wikipedia

Postgres INSERT, 2x faster

using different SQL command can speed up insert 2x with Postgres DB

Boosting Postgres INSERT Performance by 50% With UNNEST

Benchmarking PostgreSQL Batch Ingest

INSERT INTO sensors (ts, sensorid, value) 
  SELECT * 
  FROM unnest(
    $1::timestamptz[], 
    $2::text[], 
    $3::float8[]
)
      

    

instead

INSERT INTO sensors (sensorid, ts, value)
VALUES 
  ($1, $2, $3), 
  ($4, $5, $6), 
   ..., 
  ($2998, $2999, $3000);