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  "path": "/t/date-format-for-tine-tuning-ai-models/176116#post_1",
  "publishedAt": "2026-05-20T05:38:28.000Z",
  "site": "https://discuss.huggingface.co",
  "textContent": "Hi. I’m struggling with the date format to use in my datasets to fine-tune QwenX.X and Gemma-X.X models. The models is always inferring the wrong dates after fine-tuning. I tried several formats as shown in the example below to no avail. I would appreciate any guidance regarding the right date format to use or how to discover it for a given model.\n\nExamples of date formats I test but none of them worked:\n\nuser: When did XYZ work for ABC. Assistant: From January 2021 till December 2021.\n\nuser: When did XYZ work for ABC. Assistant: From 01, 2021 till 12, 2021.\n\nuser: When did XYZ work for ABC. Assistant: From 01-01-2021 till 12-01- 2021.\n\nuser: When did XYZ work for ABC. Assistant: From 01-01-2021 till 12-01- 2021 .\n\nuser: When did XYZ work for ABC. Assistant: From January 2021 01-01-2021 till December 2021 12-01- 2021 .",
  "title": "Date format for tine-tuning AI models"
}