How it's calculated
- Parses lines HH:MM(:SS) with +/-; converts to seconds and sums.
- Normalizes back to HH:MM(:SS); keeps sign for negative totals.
- Input validation guards against invalid tokens.
- Share URL stores the lines for reproducibility.
Paano kinakalkula
- Ang bawat linyang HH:MM(:SS) na may +/‑ ay pinaparse, ginagawang segundo at ina-add.
- Inaayos (araw/oras/minuto/segundo) at tama ang paghawak ng negative na kabuuan.
- Sine-save ng URL ang mga linyang inilagay para ma-reproduce ang parehong total.