diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0fb1dcb..9d1ec72 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,7 +11,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - `create_database`(formally `create_database_from_exported_csvs`) now can save a JLD2 cache to store parsed slave logs.
 - Docs: add index page for published notebooks
-- Added converter git version info (`git describe --dirty`) to the database and JLD2 cache.
+- Added converter git version info (`git describe --dirty`) and build datetime info to the database and JLD2 cache.
 
 ### Changed
 
diff --git a/src/import_data.jl b/src/import_data.jl
index 7c4b34b..7d717db 100644
--- a/src/import_data.jl
+++ b/src/import_data.jl
@@ -13,17 +13,18 @@ function insert_version_info(db::SQLite.DB, jld2_slavelog::JLD2.JLDFile)
         """,
     )
     converter_git_describe = try
-        read(`git describe --dirty`, String)
+        read(`git describe --dirty`, String) |> chomp
     catch e
         @warn "Failed to get git describe: $e"
         ""
     end
     @info "converter version info" converter = pkgversion(@__MODULE__) |> string converter_git_describe
+    datetime = round(Int64, datetime2unix(now())) |> string
     DBInterface.execute(
         stmt_insert_version,
         (;
             converter = pkgversion(@__MODULE__) |> string,
-            converter_git = converter_git_describe,
+            converter_git = converter_git_describe * '+' * datetime,
         ),
     )
     jld2_slavelog["meta"] = converter_git_describe