University of Tehran Iranian Journal of Agricultural Economics and Development Research 2008-4838 57 1 2026 03 21 Economic Analysis of Cropping Date Adjustment Strategy for Climate Change Adaptation in Agriculture Economic Analysis of Cropping Date Adjustment Strategy for Climate Change Adaptation in Agriculture 167 192 103651 10.22059/ijaedr.2025.392275.669367 FA Vahid Kalantar Department of Agricultural Economics, Faculty of Agriculture, Tarbiat Modares University, Tehran, Iran. Seyed Habibollah Mosavi Department of Agricultural Economics, Faculty of Agriculture, Tarbiat Modares University, Tehran, Iran. Hamed Najafi Alamdarlo Department of Agricultural Economics, Faculty of Agriculture, Tarbiat Modares University, Tehran, Iran. Seyed Farhad Saberali Department of Agronomy, Tarbiat Modares University, Tehran, Iran. Journal Article 2025 03 17 Climate change, as one of the major challenges of the present century, has imposed adverse impacts on the agricultural sector, particularly in arid and semi-arid regions. This study aimed to evaluate the effectiveness of altering planting dates as an adaptation strategy to climate change, through analyzing future climate change patterns in the Hamadan–Bahar plain. Initially, climate changes were projected for the future period (2026–2050). Subsequently, crop yields under future climate conditions were simulated using the AquaCrop model for both baseline and proposed planting dates. Finally, the economic dimension of the issue was assessed using a Positive Mathematical Programming model. The results of this study indicated that adjusting planting dates can play an effective role in adapting to future climatic conditions. According to the projections, the future climate will be characterized by decreased precipitation and increased temperatures, which would lead to reduced yields of water-intensive crops. However, modifying the planting calendar, by better synchronizing crop growth stages with optimal climatic periods, can improve growth conditions and consequently enhance crop yields. The economic analysis showed that changing planting dates can increase agricultural profitability and compensate for a portion of the economic losses caused by climate change. These findings highlight the significance of altering planting dates as an effective adaptation strategy in the agricultural sector, and can serve as a useful guide for policymakers and farmers to mitigate the negative impacts of climate change and promote the sustainability of agricultural production. Climate change, as one of the major challenges of the present century, has imposed adverse impacts on the agricultural sector, particularly in arid and semi-arid regions. This study aimed to evaluate the effectiveness of altering planting dates as an adaptation strategy to climate change, through analyzing future climate change patterns in the Hamadan–Bahar plain. Initially, climate changes were projected for the future period (2026–2050). Subsequently, crop yields under future climate conditions were simulated using the AquaCrop model for both baseline and proposed planting dates. Finally, the economic dimension of the issue was assessed using a Positive Mathematical Programming model. The results of this study indicated that adjusting planting dates can play an effective role in adapting to future climatic conditions. According to the projections, the future climate will be characterized by decreased precipitation and increased temperatures, which would lead to reduced yields of water-intensive crops. However, modifying the planting calendar, by better synchronizing crop growth stages with optimal climatic periods, can improve growth conditions and consequently enhance crop yields. The economic analysis showed that changing planting dates can increase agricultural profitability and compensate for a portion of the economic losses caused by climate change. These findings highlight the significance of altering planting dates as an effective adaptation strategy in the agricultural sector, and can serve as a useful guide for policymakers and farmers to mitigate the negative impacts of climate change and promote the sustainability of agricultural production. https://ijaedr.ut.ac.ir/article_103651_e5d9dcd376cdd8e190fe6ffb9a65659f.pdf