diff --git a/stdlib/Dates/src/parse.jl b/stdlib/Dates/src/parse.jl
index 62d44177de877..49c0234c7c9fa 100644
--- a/stdlib/Dates/src/parse.jl
+++ b/stdlib/Dates/src/parse.jl
@@ -207,7 +207,7 @@ function Base.parse(::Type{DateTime}, s::AbstractString, df::typeof(ISODateTimeF
     let val = tryparsenext_base10(s, i, end_pos, 1)
         val === nothing && @goto error
         dy, i = val
-        i > end_pos && @goto error
+        i > end_pos && @goto done
     end
 
     c, i = iterate(s, i)::Tuple{Char, Int}
diff --git a/stdlib/Dates/test/io.jl b/stdlib/Dates/test/io.jl
index 092a58d5d70d1..ee102288acd3e 100644
--- a/stdlib/Dates/test/io.jl
+++ b/stdlib/Dates/test/io.jl
@@ -470,6 +470,9 @@ end
 # Issue #44003
 @test tryparse(Dates.Date, "2017", Dates.DateFormat(".s")) === nothing
 
+# Issue #52989
+@test Dates.DateTime("2000") == Dates.DateTime(2000)
+
 @testset "parse milliseconds, Issue #22100" begin
     @test Dates.DateTime("2017-Mar-17 00:00:00.0000", "y-u-d H:M:S.s") == Dates.DateTime(2017, 3, 17)
     @test Dates.parse_components(".1", Dates.DateFormat(".s")) == [Dates.Millisecond(100)]