The ePIC experiment will be the first detector at the Electron-Ion Collider (EIC) that will begin first physics runs in the early 2030s. The beam time requirements to develop and test the sub-detector systems that comprise the ePIC detector are primarily driven by the EIC construction and operation schedule. While the general ePIC detector R&D is nearing completion apart from a few specifics silicon sensors and readout ASICs, the resulting needs for system scale beam tests of sub-detector assemblies imply larger and more complex beam test setups over the next years, and longer continuous beam time requirements. We have gathered projected beam time requests over the next five years and summarize below. tracking: The ePIC Silicon Vertex Tracker (SVT) system is based on the ALICE ITS3 sensor project with an additional EIC specific variant titled EIC-LAS, both of which will require beam test time in 2026-2028. The ITS3 beam test times will be identical to the times requested by the ALICE ITS3 project. The ER2 production of ITS3 as well as the initial EIC-LAS production will be ready for beam test in 2026. The production version of ITS3 and EIC-LAS are expected in 2027. Each of these versions will require around four weeks of dedicated beam time for validation each. In 2028 we expect to request about four weeks of beam time for full SVT system level testing and final production validation. The outer tracking systems within ePIC are constructed from Multi-Pattern Gas Detectors (MPGD) in three different variants. All variants can be tested in one unified test configuration, requiring two weeks of beam time with MIPs in 2026 for magnetic field testing, two weeks of MIPs in 2027 for validating gas mixtures and finally two weeks of MIP beams in 2028 for the final readout validation and system test. PID: Three of the dedicated particle identification systems in ePIC are based on Cherenkov angle reconstruction with various radiating media ranging from gas and aerogel RICH systems in the endcaps to DIRC quartz bars in the barrel region. In total these Cherenkov based detectors expect around six weeks of total beam time with mixed hadron beams (FNAL FTBF or CERN PS) in each of the years 2026, 2027, 2028. The AC-LGAD based time of flight system in ePIC covers the barrel and forward regions of the detector. AC-LGADs are also planned to be used in some of the far detectors. The AC-LGAD sensors are still under active R&D efforts, and various designs, segmentations and vendors and under investigation. We expect around four weeks of total AC-LGAD beam test times with electrons or hadron in 2026 and 2027 each for sensor validation and readout testing with small scale setups, and additional four weeks of beam time each in the years 2028 and 2029 for system level testing and final readout validation. Calorimetry: The ePIC Barrel Imaging Calorimeter (BIC) is a novel electromagnetic calorimeter concept combining layers of silicon tracking layers with scintillator fibers embedded into an absorber matrix. Each of the years 2026-2029 will require at least two weeks of beam time: 2026 will see a first combined scintillator+tracking layers prototype in an electron beam, the following years will require mixed hadron beams for full system validation with increasing prototype sizes. The backwards Electron Endcap Electromagnetic Calorimeter (EEEMC) is a homogenous PbW crystal system requiring an estimated two weeks of electron beam time in 2026 and 2027 and mixed beams for system validation in 2028. The forward electromagnetic calorimeter consists of scintillating fibers embedded in a tungsten powder matrix. We expect two weeks of beam time requests in 2026 for testing of first produced modules and additional two weeks of beam time in 2028 for final system validation. The ePIC barrel hadron calorimeter will largely reuse the existing sPHENIX barrel calorimeter structure with updated photosensors and readout electronics. The moderate changes to the system are estimated to require two beam times of two weeks of mixed hadron beams each. The ePIC Longitudinally Segmented Forward Hadron Calorimeter (LFHCAL) will require two weeks of mixed hadron beams in 2026 and then a final system validation test with full production modules in 2027 or 2028 of two weeks total. The ePIC backwards hadron calorimeter (nHCAL) expects around four weeks of total beam time between 2026 and 2029. For all of the given hadron calorimeter beam times, the final system validation beam test will include the corresponding ECAL prototype for part of the beam times. Additional Systems: Additional smaller scale systems such as the far forward luminosity system and the far backward low-Q2 tagging systems have had successful beam test campaigns using ancillary facilities such as MAMI and Mainz University. The high granularity forard HCAL insert design is being tested at RHIC in a parasitic setup close to the STAR collision point, and a similar prototype for the zero degree calorimeter will be operated in Hall C of JLAB with parasitic electron beams. Eventually require all such system will require final system level validation beam times in higher energy facilities such as CERN PS. We expect around four weeks of additional beam time requests divided between all of these additional ePIC subsystems. 2030-2040: The ePIC experiment will start full physics operation in the first part of 2030. Beam time requests in the following decade will be driven by R&D and system validation of technological upgrades of the ePIC experiment and potential tests required towards the construction of an experiment around the second EIC collision point. ----- Summary: tracking: 2026: 4wks (ITS3) + 4wks (EIC-LAS) + 2wks (MPGD) = 10wks 2027: 4wks (ITS3) + 4wks (EIC-LAS) + 2wks (MPGD) = 10wks 2028: 4wks (ITS3) + 4wks (EIC-LAS) + 2wks (MPGD) = 10wks 2029: total: 12wks (ITS3) + 12wks (EIC-LAS) + 6wks (MPGD) = 30wks PID: 2026: 2wks (dRICH) + 2wks (pfRICH) + 2wks (hpDIRC) = 6wks 2027: 2wks (dRICH) + 2wks (pfRICH) + 2wks (hpDIRC) = 6wks 2028: 2wks (dRICH) + 2wks (pfRICH) + 2wks (hpDIRC) = 6wks 2029: total: 6wks (dRICH) + 6wks (pfRICH) + 6wks (hpDIRC) = 18wks calorimetry: 2026: 2wks (BIC) + 2wks (EEEMC) + 2wks (pECAL) + 2wks (bHCAL) + 2wks (LFHCAL) + 1wk (nHCAL)= 11wks 2027: 2wks (BIC) + 2wks (EEEMC) + 2wks (LFHCAL) + 1wk (nHCAL)= 7wks 2028: 2wks (BIC) + 2wks (EEEMC) + 2wks (pECAL) + 2wks (bHCAL) + 2wks (LFHCAL) + 2wks (nHCAL)= 12wks 2029: additional: 2026: 4wks 2027: 4wks 2028: 4wks 2029: grand total: 2026: 31wks 2027: 27wks 2028: 32wks 2029: total grand total: 90wks (!)