Conversion from string "12/31/3000" to type 'Date' is not valid

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Subhadip Ghosh

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Jan 13, 2026, 9:21:56 AM (3 days ago) Jan 13
to ArcSWAT
Hello user
can you tell the error solution for
 conversion from string "12/31/3000"to type 'date' is not valid
Screenshot 2026-01-11 124922.png

Kirubel Demissie

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Jan 14, 2026, 9:20:31 AM (2 days ago) Jan 14
to Subhadip Ghosh, ArcSWAT
Hi
The error message Conversion from string "12/31/3000" to type 'Date' is not valid happens because ArcSWAT is hard-coded to expect dates in the English (United States) format (MM/DD/YYYY).
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Kirubel Demissie
Email: kirudy...@gmail.com
Phone number: 0923928000

Subhadip Ghosh

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Jan 14, 2026, 9:20:35 AM (2 days ago) Jan 14
to Kirubel Demissie, ArcSWAT
How do I solve this?

On Tue, 13 Jan 2026, 9:10 pm Kirubel Demissie, <kirudy...@gmail.com> wrote:
Hi
The error message Conversion from string "12/31/3000" to type 'Date' is not valid happens because ArcSWAT is hard-coded to expect dates in the English (United States) format (MM/DD/YYYY).

On Sunday, 11 January 2026, Subhadip Ghosh <subhadip...@gmail.com> wrote:
Hello user
can you tell the error solution for
 conversion from string "12/31/3000"to type 'date' is not valid

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Kirubel Demissie

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Jan 14, 2026, 9:20:39 AM (2 days ago) Jan 14
to Subhadip Ghosh, ArcSWAT

You need to temporarily change your computer's date format to match what ArcSWAT expects.

  1. Close ArcMap/ArcSWAT completely.

  2. Open the Control Panel on your computer.

  3. Go to Clock and Region (or just "Region").

  4. In the "Format" tab, change the Format dropdown to English (United States).

    • Check the "Short date" preview: It must look like M/d/yyyy (e.g., 6/20/2024).

  5. Click Apply and OK.

  6. Restart ArcMap, open your project, and try to "Write SWAT Database Tables" again.


On Tuesday, 13 January 2026, Subhadip Ghosh <subhadip...@gmail.com> wrote:
How do I solve this?

On Tue, 13 Jan 2026, 9:10 pm Kirubel Demissie, <kirudy...@gmail.com> wrote:
Hi
The error message Conversion from string "12/31/3000" to type 'Date' is not valid happens because ArcSWAT is hard-coded to expect dates in the English (United States) format (MM/DD/YYYY).

On Sunday, 11 January 2026, Subhadip Ghosh <subhadip...@gmail.com> wrote:
Hello user
can you tell the error solution for
 conversion from string "12/31/3000"to type 'date' is not valid

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You received this message because you are subscribed to the Google Groups "ArcSWAT" group.
To unsubscribe from this group and stop receiving emails from it, send an email to arcswat+unsubscribe@googlegroups.com.


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Kirubel Demissie
Email: kirudy...@gmail.com
Phone number: 0923928000

Nancy B. Sammons

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Jan 14, 2026, 10:36:01 AM (2 days ago) Jan 14
to Kirubel Demissie, Subhadip Ghosh, ArcSWAT

Also, check the ‘ciorng’ table in the master database.  The year limit is set == 2200 and can be changed to 3000. 

 

 

From: arc...@googlegroups.com <arc...@googlegroups.com> On Behalf Of Kirubel Demissie
Sent: Tuesday, January 13, 2026 10:23 AM
To: Subhadip Ghosh <subhadip...@gmail.com>
Cc: ArcSWAT <arc...@googlegroups.com>
Subject: Re: [ArcSWAT:13990] Conversion from string "12/31/3000" to type 'Date' is not valid

 

You don't often get email from kirudy...@gmail.com. Learn why this is important

You need to temporarily change your computer's date format to match what ArcSWAT expects.

  1. Close ArcMap/ArcSWAT completely.
  2. Open the Control Panel on your computer.
  3. Go to Clock and Region (or just "Region").
  4. In the "Format" tab, change the Format dropdown to English (United States).
    • Check the "Short date" preview: It must look like M/d/yyyy (e.g., 6/20/2024).
  1. Click Apply and OK.
  2. Restart ArcMap, open your project, and try to "Write SWAT Database Tables" again.


On Tuesday, 13 January 2026, Subhadip Ghosh <subhadip...@gmail.com> wrote:

How do I solve this?

 

On Tue, 13 Jan 2026, 9:10 pm Kirubel Demissie, <kirudy...@gmail.com> wrote:

Hi

The error message Conversion from string "12/31/3000" to type 'Date' is not valid happens because ArcSWAT is hard-coded to expect dates in the English (United States) format (MM/DD/YYYY).

On Sunday, 11 January 2026, Subhadip Ghosh <subhadip...@gmail.com> wrote:

Hello user
can you tell the error solution for
 conversion from string "12/31/3000"to type 'date' is not valid

--
You received this message because you are subscribed to the Google Groups "ArcSWAT" group.

To unsubscribe from this group and stop receiving emails from it, send an email to arcswat+u...@googlegroups.com.



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Kirubel Demissie
Email: kirudy...@gmail.com
Phone number: 0923928000



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Kirubel Demissie
Email: kirudy...@gmail.com
Phone number: 0923928000

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You received this message because you are subscribed to the Google Groups "ArcSWAT" group.

To unsubscribe from this group and stop receiving emails from it, send an email to arcswat+u...@googlegroups.com.
To view this discussion visit https://groups.google.com/d/msgid/arcswat/CAEqPrm37oxu%3Dd%2BYCPFygticCSzPr5fj5bT3OQb19o08PjCXBzA%40mail.gmail.com.

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