Describe the bug
Time conversion issue encountered for BARR site.
To Reproduce
calibrate_carbon(barr-data,
paste0(data_dir, '200-calCiso/',fout),
site = BARR,
r2_thres = 0.95,
calibration_half_width=0.5)
Expected behavior
Correct conversion of datetimes.
Screenshots

Desktop (please complete the following information):